ATT-2562CIB-d4.qxd

12/29/2003

6:19 PM

Page 1

User Manual (Part 2)
2.4 GHz Corded/Cordless Answering System E2562
with Caller ID & Call Waiting

Page 2

You must install and charge the battery before using the telephone

See page 8

for easy instructions
For customer service or product information, visit our web site at

Please also read

Important Product Information
Enclosed in product package
www.telephones.att.com or call 1-800-222-3111
Add new handsets to make your phone more versatile (see page 38) Your telephone can accommodate up to eight cordless handsets. You can add new handsets (sold separately) at any time. Up to four handsets at a time can be used. The handset provided with your telephone is automatically registered as Handset 1. Additional handsets will be assigned numbers in the order they are registered (2, 3, 4, etc.) up to a maximum of eight handsets.

Handset 1

Handset 2

Handset 3

Copyright 2003 Advanced American Telephones. All Rights Reserved. AT&T and the Globe Design are trademarks of AT&T Corporation., licensed to Advanced American Telephones.

Table of contents

Getting Started
Quick reference..2 Parts checklist..4 Before you begin..5 Telephone base installation.6 Battery installation & charging..8 Belt clip & accessories..9 Basic handset operation.10 Basic base operation..11 Options during calls.12 Intercom calls & conference calls.13 Handset settings..14 Base settings..15 Handset and base phonebooks.16 New phonebook entries.17 Phonebook search..18 To dial, edit or delete a listing.19 How Caller ID works..20 To review Caller ID logs.21 To dial a Caller ID entry.22 Voice messages with Caller ID.23
Answering System Operation
Answering system operation..24 Day and time announcements.25 Outgoing announcements.26 Message playback.27 Answering mode..28 Number of rings before answer..29 Audible message alert..30 Recording and playing memos.31 Change security code..32 Remote access.33 Display screen status icons.34 Alert tones & indicator lights..35 Adding new handsets.36 Charging spare batteries.37 In case of difficulty..38 INDEX..40 Technical specifications..42 Spare remote access card.43

Telephone Operation

Appendix

Phonebooks

Caller ID Logs
Quick reference guide Handset

Softkeys

Press a softkey to select a menu item displayed just above the key.

Off/Clear

During a call, press to hang up. While using menus, press to cancel an operation, back up to the previous menu, or exit the menu display.

Item 1 Item 2 Item 3

L1/Flash, L2/Flash
Press L1 to make or answer a call on line 1. Press L2 to make or answer a call on line 2. During a call, press to receive an incoming call, if Call Waiting is activated (see page 12).

Xfer/Intercom

Press to transfer a call or initiate an intercom conversation (see pages 10 & 13).

Speaker

Press to activate handset speakerphone. Press again to hang up.

Volume

Press to adjust listening volume.

Screen menus

Redial Log (See page 10) Phonebook (See page 16)

Main Menu

Play New MSG.See page 24 Call History.See page 20

Handset Settings

Ringers.See page 14 Low Batt Tone.See page 14 Range Tone.See page 14 Keypad Tone..See page 14 Contrast.See page 14 Enhanced Mode.See page 14

HANDSET 1

RDL MENU MEM
Mailboxes.See page 24 Handset Settings.See menu Register.See page 36

Rename.See page 14

6:20 PM

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Quick reference guide Base/Speakerphone

Telephone function keys

Answering system controls
Telephone function keys (see pages 11-15)
Item 1 Item 2 Item 3 SOFTKEYS.Press to select menu item displayed just above the key CLEAR..Press to exit current menu or clear an entry INTERCOM/ TRANSFER.Press to begin intercom call or transfer external call MUTE..Press to silence microphone; press again to resume FLASH..During a call, press to receive an incoming call, if Call Waiting is activated VOLUME.Press to adjust speakerphone listening volume HEADSET.Press to activate headset L1..Press, then lift handset to make or answer a call on line 1 L2..Press, then lift handset to make or answer a call on line 2 SPEAKERPHONE.Press to turn speakerphone on or off (begin or end a call)
Answering system controls (see pages 24-33)
ON/OFF.Press, then select mailbox to turn on or off (L1 or L2) RECORD.Press to record a memo or outgoing announcement DELETE.Press to delete message currently playing MAILBOX LINE 1.Press to play or stop playing Mailbox 1 messages MAILBOX LINE 2.Press to play or stop playing Mailbox 2 messages REPEAT.Press to repeat; press twice to hear previous message SKIP.Press to hear next message

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Parts checklist
Remember to save your sales receipt and original packaging in case you ever need to ship your telephone for warranty service. Check to make sure the telephone package includes the following:

Charger power adapter

Base handset

Telephone base

Cordless handset
Handset charger Base power adapter
Battery pack Telephone line cords (2) Battery compartment cover

Belt clip

Handset cord

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Before you begin
About Caller Identification Caller ID with Call Waiting features in this telephone let you see whos calling before you answer the phone, even when youre on another call. These features require services provided by your local telephone company. Contact your telephone service provider if: You have both Caller ID and Call Waiting, but as separate services (you may need combined service) You have only Caller ID service, or only Call Waiting service You dont subscribe to any Caller ID or Call Waiting services. You can use this phone with regular Caller ID service, and you can use its other features without subscribing to either Caller ID or combined Caller ID with Call Waiting service. There may be fees for these services, and they may not be available in all areas. Caller ID features will work only if both you and the caller are in areas offering Caller ID service, and if both telephone companies use compatible equipment. See Caller ID Operation, beginning on page 20, for more details about how these features work. Telephone operating range This cordless telephone operates with the maximum power allowed by the Federal Communications Commission (FCC). Even so, this handset and base can communicate over only a certain distance which can vary with the locations of the base and handset, the weather, and the construction of your home or office. For best performance, install the telephone base away from electronic equipment, such as personal computers, television sets or microwave ovens If you receive a call while you are out of range, the handset might not ring or if it does ring, the call might not connect when you press L1/L2. Move closer to the base, then press L1/L2 to answer the call. If you move out of range during a phone conversation, you might hear noise or interference. To improve reception, move closer to the base. If you move out of range without pressing OFF, your phone will be left off the hook. To hang up properly, walk back toward the telephone base, periodically pressing OFF until the call is disconnected.

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Telephone base installation (2-line jack)
If you have a 2-line jack, install the base as shown below. Choose a location away from electronic equipment, such as personal computers, television sets or microwave ovens. Avoid excessive heat, cold, dust or moisture.

Line 1 + Line 2

Connect the black line cord to jack labeled LINE1/L1+L2
Plug base power cord transformer into electrical outlet
Connect handset cord to corded handset
Line identification To identify phone lines, press SPEAKERPHONE, then call one of your telephone numbers. If you hear a busy signal, Line 1 is the number you called. If Line 2 rings, it is the number you called.
NOTE: Use only the power cord supplied with this product. If you need a replacement, call 2223111.
Be sure to use an electrical outlet not controlled by a wall switch.

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Telephone base installation (separate line jacks)
If you have separate jacks for each line, install the base as shown below. Choose a location away from electronic equipment, such as personal computers, television sets or microwave ovens. Avoid excessive heat, cold, dust or moisture.

Line 1

Line 2 Connect black line cord to jack labeled LINE 2
Connect handset cord to base handset
Connect clear line cord to jack labeled LINE 1

6:21 PM

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Battery & charger installation
After installation, place the handset in the charger and allow the battery to charge for 12 hours before use. You can keep the battery charged by returning the handset to the charger after each use. When battery power is fully depleted, a full recharge takes about 8 hours.

LOW BATTERY

Press coin into slot on base of handset to release latch, then remove cover
Low battery indicator Return handset to charger when this symbol flashes. (Handset will beep when battery is low.)
Insert supplied battery Caution: Use only supplied rechargeable battery.
Place handset in charger for 12 hours before first use Plug power cord into jack on underside of charger, then plug transformer into electrical outlet

Insert top tab first

Press down to click in place
DID YOU KNOW? An optional spare battery can be kept charged in the base, for quick replacement when the handset battery becomes depleted (see page 37).

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Belt clip & accessories
Install belt clip as shown below if desired. For hands-free telephone conversations, you can use any industry standard 2.5 mm headset (purchased separately). For best results use an AT&T 2.5 mm headset.
Snap belt clip into notches on side of handset. Rotate and pull to remove.
Plug 2.5 mm headset into jack on side of handset or base Use DATA jack at back of phone to connect fax or modem if desired (data port uses Line 2 only)

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Basic handset operation
Making and answering calls To answer an incoming call, press L1 or L2. Press L1 or L2 to make a call on line 1 or line 2, then dial a number. Press OFF to hang up. To preview before dialing, enter numbers first, then press L1/L2 to dial. Press CLEAR to make corrections as you enter numbers. Hands-free speakerphone calls To answer a call, press SPEAKER. To make a call, press SPEAKER, then dial a number. During a call you can press SPEAKER to toggle between hands-free speakerphone and normal handset use. Press OFF to hang up.
Last number redial Press RDL to view the last 5 numbers called (up to 32 digits each). Use the ^V buttons to select a number, then press L1/L2 to dial. Press SELECT then ERASE to delete this number from the redial memory, or SAVE to copy the number into your phonebook. Hold and mute
Press HOLD to place a call on hold. Press L1/L2 (or L1/L2, then SPEAKER) to resume the call. Press MUTE to silence the microphone. You will be able to hear, but your caller will not be able to hear you until you press MUTE again to resume speaking. Call transfer During a conversation you can transfer the call to the base or to another handset. Press XFER to display a list of sets. Use the ^V buttons to highlight the set you want, then press OK to transfer the call to the remote set. To announce your call, press HOLD before you press XFER. When the recipient presses INTERCOM to answer, you can talk privately. After you (or the recipient) press INTERCOM to end the intercom call, the recipient can answer the transferred call.

BASE 0 HANDSETHANDSET3 3

6:22 PM

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Basic base operation
Making and answering calls
To answer a call, lift the base handset, press SPEAKERPHONE, or press HEADSET (if a headset is connected). To make a call, lift the base handset, press SPEAKERPHONE or press HEADSET, then dial a number. To choose a line, press L1 or L2, then lift the base handset, press SPEAKERPHONE or press HEADSET, then dial a number. To preview numbers before dialing, enter numbers first, then press SPEAKERPHONE or HEADSET to dial. Press CLEAR to make corrections as you enter numbers. To hang up, replace the base handset, press SPEAKERPHONE or press HEADSET.

Volume Tone

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Intercom calls & conference calls
Intercom calls Press the INTERCOM button at a handset or at the base. Scroll down to select a station, or select GLOBAL PAGE to page all stations. Press OK to page the selected station. To answer an intercom page at the handset, press INTERCOM. At the base, lift the handset or press SPEAKERPHONE. When your intercom call is finished, press OFF at the handset (or SPEAKERPHONE at the base) to end the call.

Press INTERCOM

Handling incoming calls During an intercom call, you will hear a beep to alert you if there is an incoming call. You have two options: Press L1/L2 at the handset (or SPEAKERPHONE at the base) to answer the outside call and conference it in with your existing intercom conversation.

Select station to page

BASE HANDSET2 HANDSET3 GLOBAL PAGE 3 *
Press INTERCOM to terminate the intercom conversation, then answer the outside call (see pages 10-11). 3-way conference calls During a call, someone at another station (base or handset) can press L1/L2 to join in the conversation. You can also use both outside lines at the same time to set up a three-way conference call. 1 Make or answer a call. 2 Press HOLD. 3 Make a call on the other line. 4 When the call is answered, press CONF. To drop line 1, press DROP LINE 1, then press OK. To drop line 2, press DROP LINE 2, then press OK. To end a conference call, press DROP BOTH LINES, then press OK.

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Handset settings
Ringers At this menu you can set default ring volumes, or turn the ringer off. You can also select one of six call melodies. Settings are selectable for the intercom and each line. Follow the menu instructions to select the volume and melody you prefer, then press OK or SAVE to confirm.

Select MENU

Low battery tone The handset is factory programmed to alert you with a tone when the battery is low and needs recharging. Press ON or OFF, then press OK to confirm. Out-of-range tone

Select HANDSET SETTINGS

CALL HISTORY MAILBOXES HANDSET SETTINGS REGISTER
The handset is factory programmed to alert you with a tone when the handset is too far from the base. Press ON or OFF, then press OK to confirm. Keypad tone The handset is factory programmed to beep at each keypress. Press ON or OFF, then press OK to confirm.

Scroll to choose desired item
RINGERS LOW BATT TONE RANGE TONE KEYPAD TONE
Contrast At this menu you can adjust screen contrast to one of 16 levels. Use the <> buttons to select the level you prefer, then press OK to confirm. Enhanced mode

Press SET to select

LOW BATT TONE RANGE TONE KEYPAD TONE CONTRAST
Use the ^V buttons to select On, Off or Auto, then press OK to confirm. When on, this mode may improve sound quality and range, but will use more battery power. In Auto mode, the handset switches to Enhanced Mode when reception is poor. Rename Select Rename to change the name (up to 14 letters) that identifies your handset in all Intercom/Transfer menus (see page 17 to enter letters). Press SAVE to confirm.

6:23 PM

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Base settings

Call screening Call screening lets you hear messages as callers leave them. Press ON or OFF, then press OK to confirm.

RDL MENU

Set pulse/tone Factory default setting for both lines is TONE. Change this to PULSE only if you do not have touch-tone dialing service (select line, select TONE or PULSE, then press OK). Keypad tone The handset is factory programmed to beep at each keypress. Press ON or OFF, then press OK to confirm. Contrast

Select SETUP BASE

CALL HISTORY MAILBOXES SETUP BASE DISPLAY BASE ID
RINGERS CALL SCREENING SET PULSE/TONE KEYPAD TONE
At this menu you can adjust screen contrast to one of 16 levels. Use the <> buttons to select the level you prefer, then press OK to confirm. Enhanced mode

Press OK to select

CONTRAST ENHANCED MODE RENAME DEREGISTER ALL
Use the ^V buttons to select On, Off or Auto for all handsets, then press OK to confirm. When on, this mode may improve sound quality and range, but will use more battery power. In Auto mode, handsets switch to Enhanced Mode when reception is poor. Rename Select Rename to change the name (up to 14 letters) that identifies your handset in all Intercom/Transfer menus (see page 17 to enter letters). Press SAVE to confirm. Deregister all Use this option with caution. It will make all handsets unusable until each has been re-registered (see page 36).

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PAT JOHNSON 123-456-7890
Handset and base phonebooks There are separate phonebook directories in the handset and the base. Each phonebook can store up to 50 entries. Each entry can contain a number up to 32 digits, and a name up to 16 letters long. A convenient search feature can help you find and dial numbers quickly (see page 18). The procedure for entering, editing and dialing phonebook entries is the same for both the handset and the base. Timeouts and error tones If you pause for too long while making an entry the procedure will time out and you will have to begin again. If all memory locations are in use, an error tone will sound when you attempt to enter a new number. This means the memory is full, and you will not be able to store a new number until you delete an existing one.

Handset: 50 entries

Base: 50 entries

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Phonebooks Enter number, then press MEM

New phonebook entries

555-1234

PAUSE MENU MEM

To enter a number Use the dial pad to enter up to 32 digits. When the number is complete, press MEM.
Enter name, then press SAVE

ENTER NAME PAT WILLIAMS

CLR SAVE
Press CLEAR to erase numbers if you make a mistake. Press PAUSE to enter a dialing pause. To enter a name Press dial pad buttons once for the first letter, twice for the second, three times for the third. Continue for lower-case letters. To enter a number, continue pressing the button until the number appears.
Press once to enter A (4 times for a)

ENTRY HAS BEEN STORED

Press twice to enter B (5 times for b)
Press 3 times to enter C (6 times for c) Press 7 times to enter 2
The cursor moves to the right when you press another dial pad button. Press > twice to enter a space. Press CLR to erase letters if you make a mistake. Press 1 repeatedly to enter an ampersand (&), apostrophe ('), comma (,) period (.), or digit 1. Press # to enter a pound sign (#). Press * to enter an asterisk (*). Storing the entry Press SAVE to store your new phonebook entry. To change it later, see page 19.

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Phonebooks Press MEM to select phonebook

Phonebook search

You can use the up/down arrows to browse through the phonebook, or search to find a specific entry. You can press CLEAR at any time to exit the directory. To browse through the directory To browse, press ^ or V to scroll through all entries one by one.
To search alphabetically To shorten your search, press FIND, then use the telephone dial pad to enter the first letter of a name. When you press FIND again, the first name beginning with that letter will be displayed. Press dial pad buttons once for the first letter, twice for the second, three times for the third, as shown on page 17. To call a displayed number To dial the displayed entry, lift the base handset, press L1/L2, or press SPEAKER.

SEARCH FOR J_

CLR FIND

JACK 123-555-4321

Shortcut Press * at any time while a phonebook entry is displayed to jump immediately to the Search menu.

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PAT WILLIAMS 555-1234
To dial, edit or delete entries
To dial a number When any phonebook entry is displayed, press L1/L2 (or L1/L2 , then SPEAKERPHONE at the base) to dial.
Press DEL to delete entry

DEL EDIT

To delete an entry Press EDIT, then DEL. Select THIS to delete only this entry, or ALL then YES to delete all entries in the phonebook. Deleted entries cannot be recovered. To edit a listing Press EDIT to modify the entry. You can change the name or number by following the steps on page 17.

Press to delete message (see page 27) Press to skip message (see page 27)
Press to start or stop Line 1 message playback (see page 27)
Press to start or stop Line 2 message playback (see page 27)

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Day and time announcements
To set day and time Before playing each message, the answering system announces the day and time the message was received.

Select MAILBOXES

CALL HISTORY MAILBOXES
Before using the answering system, you should follow the steps at left to set the day and time, so messages are dated correctly. To set the day, scroll to a day of the week, then click SET. Scroll to the correct day, then click OK. To set the time, scroll to the current time setting, then click SET. Use the dial pad to enter four digits (08:15), then press 7 for AM or 2 for PM). Press SAVE when time is entered correctly.

Select mailbox to modify

MAILBOX 1 MAILBOX 2 MAILBOX 1 SETUP MAILBOX 2 SETUP
Select and modify day & time
# OF RINGS: 4 SUNDAY 12:00AM AUD ALERT OFF

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Answering System Operation Select MAILBOXES

Outgoing announcements

Outgoing announcements are the messages callers hear when calls are answered by the answering system. The phone is pre-programmed with an announcement that answers calls with Hello. Please leave a message after the tone. You can use this announcement, or replace it with a recording of your own voice. To record your outgoing announcement Follow the steps at left to select RECORD NEW OGA, then press OK. At the screen prompt, begin speaking. Speak facing the telephone base from about 9 inches away. Press STOP when you are finished to hear the message you just recorded. You can record an announcement up to 4 minutes long. Announcements less than 3 seconds long will not be recorded. Shortcut (base only): Press and hold RECORD, then press MAILBOX LINE1/LINE2 to record an outgoing announcement for the selected line. To review or delete your announcement Follow the steps at left to select LISTEN TO OGA or DELETE OGA. If you delete your outgoing announcement, calls will be answered with the pre-programmed announcement described above.

Select REVIEW/CHNG OGA

ANSWER + RECORD REVIEW/CHNG OGA SEC. CODE: 5000 # OF RINGS: 2

Select RECORD NEW OGA

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Charging a spare battery
An optional spare battery (AT&T 2401 or 2403, sold separately) can be kept charged in the base, for quick replacement when the handset battery becomes depleted. In the event of a power failure, the charged battery in the base will allow you to make and receive calls for up to one hour. A spare battery requires at least 24 hours to reach full charge.
Press latch on side of phone to open drawer, insert battery, then close drawer. Insert battery with contacts facing up and to the right, as shown. Caution: Use only supplied rechargeable battery. Replace only with AT&T Model 2401 battery (SKU 26820).

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In case of difficulty
If you have difficulty with your phone, please try the suggestions below. For Customer Service, visit our web site at www.telephones.att.com, or call 2223111.
Telephone does not work at all
Make sure the battery is installed and charged correctly (see page 8). Make sure the AC adapter is plugged into an outlet not controlled by a wall switch. Make sure the telephone line cord is plugged firmly into the base unit and the modular jack. If these suggestions do not work, unplug the base, remove and reinsert the battery, then place the handset in the base to re-initialize.

Phone does not ring

Make sure the ringer is on (see pages 14-15). Make sure the telephone line cord and AC adapter are plugged in properly (see pages 6-7). Move the handset closer to the base. You might have too many extension phones on your telephone line to allow all of them to ring. Try unplugging some of them.
If you hear noise or interference during a call
You may be out of range. Move closer to the base. Appliances plugged into the same circuit as the base can cause interference. Try moving the appliance or base to another outlet. The layout of your home or office might be limiting the operating range. Try moving the base to another location, preferably on an upper floor. If the buttons dont work, try placing the handset in the base for at least 15 seconds. Disconnect the base from the modular jack and plug in a corded telephone. If calls are still not clear, the problem is probably in your wiring or local service. Call your local telephone service company.

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Incomplete messages
If a caller leaves a very long message, part of it may be lost when the system disconnects the call after 4 minutes. If the caller pauses for more than 7 seconds, the system stops recording and disconnects the call. If the systems memory becomes full during a message, the system stops recording and disconnects the call.

Difficulty hearing messages
^ to increase speaker volume.
System does not answer after correct number of rings
Make sure that the answering system is on. If Toll Saver is activated, the number of rings changes to two when you have new messages waiting (see page 29). In some cases, the system may be affected by the ringing system used by the local telephone company. If the memory is full or the system is off, the system will answer after 10 rings.
System does not respond to remote commands
Be sure to enter your Remote Access Code correctly (see pages 32-33). Make sure you are calling from a touch-tone phone. When you dial a number, you should hear tones. If you hear clicks, the phone is not a touch-tone telephone and cannot activate the answering system. The answering system may not detect the Remote Access Code while your announcement is playing. Try waiting until the announcement is over before entering the code. There may be noise or interference on the phone line you are using. Press dial-pad buttons firmly. When you record your announcement, make sure you speak in a normal tone of voice, about 9 inches from the base. Make sure there is no background noise (TV, music, etc.) while you are recording.
Announcement message is not clear
On/Off button is flashing
The On/Off button on the base flashes when one mailbox is turned off. To stop the flashing, press ON/OFF, then set both mailboxes to On (see page 24).

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A AC adapter, 6, 7 Access code, 32, 33 Alert tones, 35 Answering calls, 10, 11 Answering system, 24 answer only, 28 audible message alert, 30 delete messages, 27 outgoing announcement, 26 memos, 31 message window, 32 play messages, 29, 30 remote access, 33 rings before answer, 29 security code, 32, 33 B Battery charging, 8, 37 Battery installation, 8 Belt clip, 9 C Call history, 20 Caller ID, 5, 20 add entries to phone directory, 21 delete entries, 21 dial entries, 22 Call screening, 15 CID, 20 Conference calls, 13 D Day/time, 25 Delete Call Log entries, 21 Delete redial entries, 10, 11 Dialing, manual dialing, 10, 11 phonebook dialing, 19 E Ending calls, 10, 11 Error tones, 35 F Flash (switchhook flash), 10, 11 H Hands-free use, 10, 11 Headphone, 9 Hold, 10, 11 I Incoming call log, 20 Incoming calls, answering, 10, 11, 13 Incoming messages, 23, 24 Indicator lights, 35 Intercom, 13 L Last number redial, 10, 11 Low battery, 8 M Making calls, 10, 11 Memos, 31 Menus, 2, 14-16 Message alert, 30 Messages, 24-33 Microphone, 26, 31 Mute, 10, 11

Page 41

N Names, enter into phonebook, 17 search for, 18 New handsets, 36 Number of rings before answer, 29 O On/off button, 24 Operating range, 5 Outgoing announcement, 26 Out of range, 5, 14 P Paging, 13 Phonebooks, dial number, 19 edit entries, 19 name search, 18 new entries, 17 Playback (messages), 27 Problems, 38 Q Quick reference guide, 2-3 R Receiving calls, 10, 11 Recharging, 8, 37 Redial, 10, 11 Repeat, 27 Ring silencing, 12 Ring tone options, 14, 15 S Search for name, 18 Security codes, 32, 33 Skip, 27 Spare battery, 37 Speakerphone, 10, 11 T Technical specifications, 42 Time, 15 Tones, base tones & alerts, 35 handset tones & alerts, 35 send tones during call, 12 Troubleshooting, 38 V Voice mail, 24-33 Volume controls, 12

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Technical specifications
RF Frequency Band Channels Channel Spacing Sensitivity Base Unit Voltage (AC Voltage, 60Hz) Base Unit Voltage (AC Adapter Output) Handset Voltage
2400 MHz 2483.5 MHz KHz -93 dBm Vrms 8.61 Vdc 2-3 Vdc

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Remote access wallet card
Your package includes a handy wallet card to help you remember access commands you can use to control your answering system from any touch-tone telephone. If you misplace this card, just clip and save the card below.

Cut along dotted line

Call your phone number, then enter your 4-digit access code (preset to 5000). Action Remote Command
Voice help menu. Play messages. +mailbox (all) +mailbox (new) Repeat message. Skip message.. Stop.. Save messages.. Hang up Delete message. (current) + mailbox (all)

Fold card here

7 +mailbox number 7 +mailbox number 5 to stop Change answer mode.9 +mailbox number...#5 to stop End remote access call.* (or hang up) Turn mailbox off.0 +mailbox number
Review announcement. Record announcement. Turn mailbox on.If off, system answers after 10 rings. Enter access code, then press 0 + mailbox number
2.4 GHz 2-Line Telephone/Answering System E2562

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Page 45

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www.telephones.att.com
Copyright 2003 Advanced American Telephones. All Rights Reserved. AT&T and the Globe Design are trademarks of AT&T Corporation, licensed to Advanced American Telephones.Printed in China. Issue 1.4 AT&T 12/29/03.

ATT-252CIB-d1.qxd

12/30/2003

1:59 PM

2.4 GHz Expansion Handset E252
For use with AT&T model E2562
You must charge batteries and register the handset before use

See pages 2-3

Before you begin..1 Parts checklist..1 Battery installation & charging.2 Registering the handset..3 Belt clip & optional headset..4 Quick reference guide..5
This cordless telephone operates with the maximum power allowed by the Federal Communications Commission (FCC). Even so, this handset and base can communicate over only a certain distance which can vary with the locations of the base and handset, the weather, and the construction of your home or office. For best performance, keep the base antenna fully upright. If you receive a call while you are out of range, the handset might not ring or if it does ring, the call might not connect when you press PHONE. Move closer to the base, then press PHONE to answer the call. If you move out of range during a phone conversation, you might hear noise or interference. To improve reception, move closer to the base. If you move out of range without pressing OFF, your phone will be left off the hook. To hang up properly, walk back toward the telephone base, periodically pressing OFF until the call is disconnected.

Power adapter Telephone handset Belt clip

Batteries

Handset charger

2:00 PM

Light remains on while batteries are charging.

Registering the handset

Enter base ID, then press OK
ENTER BASE ID 123456789012345
Before using your new handset, you must register it with the base. During registration, you must enter the 15-digit ID number of the telephone base. To find this number, go to the base, press MENU, scroll down to select DISPLAY BASE ID, then press OK. The handset provided with your telephone is automatically registered as Handset 1. Additional handsets will be assigned numbers in the order they are registered (2, 3, 4, etc.) up to a maximum of eight.

REDIAL MENU MEM

Belt clip & optional headset
Plug 2.5 mm headset into jack on side of handset (beneath small rubber cap)

Quick reference guide

For complete instructions, please refer to the manual provided with your telephone.
Press L1 to make or answer a call on line 1. Press L2 to make or answer a call on line 2. During a call, press to receive an incoming call, if Call Waiting is activated.
Press to transfer a call or initiate an intercom conversation.
Redial Log Phonebook Play New MSG Call History
Ringers Low Batt Tone Range Tone Keypad Tone Contrast Enhanced Mode
Mailboxes Handset Settings Register

Rename

Copyright 2003 Advanced American Telephones. All Rights Reserved. AT&T and the Globe Design are trademarks of AT&T Corporation, licensed to Advanced American Telephones. Printed in China. Issue 1.1 AT&T 12/30/03.

PROJECT REPORT

Screening Test: Determine the Removal Efficiency of Enzymes against a Pseudomonas aeruginosa biofilm grown in the CDC Biofilm Reactor
June 27, 2008 Submitted to: Richard J. Kersey President Orenda Technologies, Inc. 2600 East Hemberg Drive Flagstaff, AZ 86004 Tel: (928) 522-0194 Fax: (928) 522-0256 Submitted by: Darla M. Goeres Assistant Research Professor Center for Biofilm Engineering Montana State University Bozeman, MT 59717 Tel: (406) 994-2440 Fax: (406) 994-6098 darla_g@erc.montana.edu
Summary: The goal of this screening test was to determine the removal efficiency of CV-700, a proprietary enzyme/phosphate remover, against a laboratory Pseudomonas aeruginosa biofilm grown according to ASTM Method E2562-07 in the CDC biofilm reactor. The CDC reactor generates biofilm under high fluid shear. The resulting biofilm is tightly adhered to the surface with mushroom shape architecture. The screening occurred in two phases. For phase 1, the removal efficiency of CV-700 was tested against fully established biofilm grown in the CDC reactor. Treatment occurred for 16 hours. Samples were collected at 2 and 16 hours. The four combinations of treatment tested were: 1) sterile buffered water and CV-700 at a ratio of 1 oz product per 1000 gal water (pH=7.2), 2) sterile buffered water (pH = 7.2), 3) sterile buffered water and 2 mg/L free chlorine (pH = 7.2), 4) sterile buffered water, CV-700 (at a ratio of 1 oz product per 1000 gal water) and 2 mg/L free chlorine (pH=7.2). Results showed that the 2 mg/L free chlorine treatment resulted in a slightly greater log reduction of bacteria during the first two hours of treatment, but by T=16, there was no difference between the treated reactors and the control reactor. For phase 2, biofilm was grown in the presence of the CV-700 during the continuous flow growth phase. CV-700 was added at a ratio of 5 oz per 1000 gal water to reactor 1 and 10 oz per 1000 gal water to reactor 4. Both reactors also contained 100 mg/L Trypic soy broth (TSB standard bacterial growth media). After the growth phase, the biofilm was added to treatment reactors that contained: 1) equivalent of 5 oz CV-700/1000 gal water and 2 mg/L free chlorine, 2) sterile buffered water, 3) 2 mg/L free chlorine, and 4) equivalent of 10 oz CV-700/1000 gal water plus 2 mg/L free chlorine. The pH was adjusted to equal 7.2 in all of the reactors. Samples were collected at time equal to two and four hours. The results showed that the addition of CV-700 at a concentration equal to 10 oz/1000 gal reduced the biofilm that formed during the continuous growth phase of biofilm development by 2 logs, a difference of practical importance. Adding this biofilm into a treatment reactor containing both the CV-700 and 2 mg/L free chlorine did not result in an additional reduction of biofilm. Project Dates: May 19, 2008 June 27, 2008
Background The goal of the screening project was to determine the removal efficiency of CV-700, a proprietary enzyme/phosphate remover, against a Pseudomonas aeruginosa biofilm grown in the CDC reactor under high fluid shear. Testing occurred against a laboratory biofilm that contained bacteria and the organic extracellular polymeric slime they generate as part of the biofilm matrix. Previous research has shown that bacteria within this biofilm exhibit a dense, tightly adhered mushroom shape architecture and are resistant to high levels of sodium hypochlorite when tested for a 10 minute contact time at neutral pH (Buckingham-Meyer et al., JMM 70:236-244, 2007). The screening occurred in two phases. PHASE 1 Methods 1. A Pseudomonas aeruginosa biofilm was grown according to ASTM Method E2562-07, titled Standard Test Method for the Quantification of a Pseudomonas aeruginosa Biofilm Grown with High Shear and Continuous Flow using a CDC Biofilm Reactor. The biofilm was grown on polycarbonate coupons in four separate reactors. 2. At the end of the 24 hour continuous flow growth phase, the top of each CDC reactor was removed, dipped into sterile buffered water to wash-off any loosely attached cells, and place into a treatment reactor that contained one of the following: Reactor 1: CV-700 equivalent to 1 oz/1000 gal water Reactor 2: sterile buffered water Reactor 3: 2 mg/L free chlorine (reactor was covered with foil during treatment) Reactor 4: CV-700 equivalent to 1 oz/1000 gal water and 2 mg/L free chlorine (reactor was covered with foil during treatment) The pH in each reactor was adjusted to equal 7.2. Each treatment reactor sat on a stir plate set to 125 rpm. 3. At time equal to 2 and 16 hours, six coupons were collected. Three coupons were evaluated for viable bacteria according to the following procedure. Remove each coupon from rod and dip into sterile dilution water containing sodium thiosulfate (neutralizer). Scrape the biofilm from the coupon surface into a test tube containing sterile buffered water and neutralizer, disaggregate the sample, dilute and plate for viable cells. Three coupons were evaluated for total biomass present using the following procedure based upon the use of crystal violet. Remove each coupon from rod and dip into sterile dilution water containing neutralizer. Place coupon in sterile beaker and stain with 5 ml of 1% crystal violet (CV) for 10 minutes. Rinse coupons three times by dipping into sterile dilution water. Elute the CV from the coupons with 5 ml 95% ethanol for 10 minutes. Measure the absorbance of the elution solution on a spectrophotometer set to 540 nm. 4. At time equal to 2 and 16 hours, one bulk water sample was collected and evaluated for suspended bacteria according to the following procedure. Add 1 mL of sample to 9 mL sterile buffered water and neutralizer, disaggregate, dilute and plate for viable cells. Bulk water samples were also evaluated for pH and free chlorine concentration. 5. At time equal to 16 hours, the surface of one coupon from each reactor was qualitatively evaluated by viewing under a stereoscope.

Results Water Chemistry Table 1 shows the water chemistry results from the Phase 1 testing for each of the reactors. The pH was adjusted to equal 7.2 at time equal to zero in each reactor. The pH decreased by approximately 0.3 pH units in every reactor. The target free chlorine concentration was 2 mg/L for reactors 3 and 4. By time equal to 2 hours, there was no measurable chlorine in either reactor. Reactors 1 and 2 contained no chlorine. Table 1. Water chemistry results for Phase 1.
Biomass Removal Table 2 shows the percent biomass removal efficiency for reactors 1, 3 and 4. Removal efficiency was calculated by subtracting the mean absorbance reading for a treated reactor from the mean absorbance reading for the control reactor and dividing this amount by the mean absorbance reading for the control reactor. This number was multiplied by 100. At time equal to two hours, coupons from all of the treated reactors showed less biomass than the control reactor, but by time equal to 16 hours, there was no difference between the treated and control reactors. Table 2. Removal efficiency found for reactors 1, 3 and 4.
Bacteria in the Bulk Water Table 3 shows the log density of viable bacteria measured in the bulk water. The treatment vessels were sterile at the start of the experiment, and so any bacteria measured is detached biofilm. Slightly more bacteria were found in the bulk water of reactor 3. Reactors 1 and 4 were not different from the control reactor (#2).
Table 3. Log density of viable bacteria measured in the bulk fluid of each reactor.

Biofilm Bacteria

The biofilm results are presented in Table 4. The mean biofilm log density found in the four reactors at T=0 was equal to 8.33 + 0.16. This is a typical biofilm density for the CDC biofilm reactor when operated according to ASTM Method E2562-07. Two different log reductions were calculated using the measured mean biofilm log densities. The first log reduction looked at a with-in reactor reduction at T=2 and T=16 hours by subtracting the mean log density at T=2 (or T=16) from the log density measured at T=0. At T=2, reactor 3 had the greatest reduction in biofilm cells. Although the difference is not of practical importance, the result is consistent with the results presented in Table 2. By T=16, though, the reduction in biofilm cells for the treated reactors were not different than the reduction calculated for the control reactor. The second approach used to calculate the log reduction was to subtract the mean biofilm log density for the treated reactors from the mean biofilm log density found for the control reactor at the same point in time. Once again, at T=2, reactor 3 had the greatest log reduction, although the difference in not of practical importance. At T=16 the treated reactors were not different from the control reactor as demonstrated by the low reduction reported for reactor 1 (0.12) and the negative reductions reported for reactors 3 and 4. Table 4. Phase 1 biofilm density and calculated log reduction values.

At time equal to 16 hours, one coupon from each reactor was also inspected under the stereoscope; images are attached to this report as a power point file. A qualitative inspection of the coupon surfaces showed no difference among the coupons from the four reactors. Conclusion At time equal to 2 hours, the treatment vessel that contained only free chlorine showed a slightly greater removal efficiency, but by time equal to 16 hours, there was no difference between the treated and control reactors. Tested under the above described conditions, CV-700 did not remove biofilm. PHASE 2 Methods 1. A Pseudomonas aeruginosa biofilm was grown according to ASTM Method E2562-07, titled Standard Test Method for the Quantification of a Pseudomonas aeruginosa Biofilm Grown with High Shear and Continuous Flow using a CDC Biofilm Reactor with the following modifications: Reactor 1: add the equivalent of 5 oz CV-700/1000 gal to the continuous flow growth media Reactor 4: add the equivalent of 10 oz CV-700/1000 gal to the continuous flow growth media No changes were made to the continuous flow growth media for reactors 2 and 3. Polycarbonate coupons were used in all four reactors. 2. At the end of the 24 hour continuous flow growth phase, the top of each CDC reactor was removed, dipped into sterile buffered water to wash-off any loosely attached cells, and place into a treatment reactor that contained one of the following: 4
Reactor 1: CV-700 equivalent to 5 oz/1000 gal water and 2 mg/L free chlorine (reactor was covered with foil during treatment) Reactor 2: sterile buffered water Reactor 3: 2 mg/L free chlorine (reactor was covered with foil during treatment) Reactor 4: CV-700 equivalent to 10 oz/1000 gal water and 2 mg/L free chlorine (reactor was covered with foil during treatment) The pH in each reactor was adjusted to equal 7.2. Each treatment reactor sat on a stir plate set to 125 rpm. 3. At time equal to 2 and 4 hours, six coupons were collected. Three coupons were evaluated for viable bacteria according to the following procedure. Remove each coupon from rod and dip into sterile dilution water containing sodium thiosulfate (neutralizer). Scrape the biofilm from the coupon surface into a test tube containing sterile buffered water and neutralizer, disaggregate the sample, dilute and plate for viable cells. Three coupons were evaluated for total biomass present using the following procedure based upon the use of crystal violet. Remove each coupon from rod and dip into sterile dilution water containing neutralizer. Place coupon in sterile beaker and stain with 5 ml of 1% crystal violet (CV) for 10 minutes. Rinse coupons three times by dipping into sterile dilution water. Elute the CV from the coupons with 5 ml 95% ethanol for 10 minutes. Measure the absorbance of the elution solution on a spectrophotometer set to 540 nm. 4. At time equal to 2 and 4 hours, one bulk water sample was collected and evaluated for suspended bacteria according to the following procedure. Add 1 mL of sample to 9 mL sterile buffered water and neutralizer, disaggregate, dilute and plate for viable cells. Bulk water samples were also evaluated for pH and free chlorine concentration. 5. At time equal to 4 hours, the surface of one coupon from each reactor was qualitatively evaluated by viewing under a stereoscope. Results Water Chemistry Table 5 shows the water chemistry results from the Phase 2 testing for each of the reactors. The pH was adjusted to equal 7.2 at time equal to zero. The pH decreased by approximately 0.2 0.3 pH units in every reactor. The target free chlorine concentration was 2 mg/L for reactors 1, 3 and 4. By time equal to 2 hours, there was no measurable free chlorine in any of the three reactors. Reactor 2 contained no chlorine. Table 5. Water chemistry results for Phase 2.

Biomass Removal Table 6 shows the percent biomass removal efficiency for reactors 1, 3 and 4. Removal efficiency was calculated by subtracting the mean absorbance reading for a treated reactor from the mean absorbance reading for the control reactor and dividing this amount by the mean 5
absorbance reading for the control reactor. This number was multiplied by 100. At time equal to two hours, testing showed that coupons from reactors 1 and 4 contained less biomass than the control. Reactor 3 had a negative removal efficiency, meaning that the control coupon contained less biomass than a coupon collected from reactor 3. At T=4 hours, coupons collected from reactors 1 and 4 still contained less biomass than a coupon collected from the control reactor. Table 6. Removal efficiency found for reactors 1, 3 and 4 during Phase 2 testing.
Bacteria in the Bulk Water Table 7 shows the log density of viable bacteria measured in the bulk water. The treatment vessels were sterile at the start of the experiment, and so any bacteria measured is detached biofilm. The density of bacteria in the bulk fluid increased at a similar rate for all four reactors, although the rate of biofilm detachment (as measured by the increase of bacteria in the bulk fluid) was slightly greater for reactor 1. Reactor 4 contained 3.9 logs less bacteria than reactor 2, a difference of practical importance.
Table 7. Log density of viable bacteria measured in the bulk fluid of each reactor.
Biofilm Bacteria The biofilm results are presented in Table 8. The mean biofilm log density measured in reactors 2 and 3 at T=0, was equal to 8.10 + 0.16. Reactors 2 and 3 were operated according to the ASTM method with no modifications. This number is consistent with the mean biofilm log density measured at T=0 during Phase 1 testing (8.33 + 0.16). The mean biofilm log density measured in reactor 1 at T=0 was equal to 8.13, indicating that the addition of CV-700 at a concentration equal to 5 oz/1000 gal to the reactor during the continuous growth phase of the biofilm development did not affect biofilm growth. The mean biofilm log density measured in reactor 4 at T=0 equaled 6.10 log10(cfu/cm2), a difference of 2 logs. This difference is of practical importance and implies that the addition of CV-700 at a concentration equal to 10 oz/1000 gal did reduce the biofilm that formed during the continuous growth phase of biofilm development.
Table 8. Phase 2 biofilm density and calculated log reduction values.
Two different log reductions were calculated using the measured mean biofilm log densities. The first log reduction looked at a with-in reactor reduction at T=2 and T=4 hours by subtracting the mean log density at T=2 (or T=4) from the log density measured at T=0. At T=2, reactor 2 experience the greatest reduction in biofilm cells. A possible explanation is that the biofilm coupons that were sampled in the control reactor experienced a sloughing event. Sloughing events are really common and difficult to predict. Sloughing events are also why differences of one log or less are of little practical importance in biofilm efficacy testing. The second approach used to calculate the log reduction was to subtract the mean biofilm log density for the treated reactors from the mean biofilm log density found for the control reactor at the same point in time. Reactor 4 had a log difference of between 1.5 and 2.1 logs at all points tested; a difference of practical importance indicating that was consistently less biofilm in this reactor. The results indicate that the decreased biofilm was not a result of the addition of chlorine to the reactor, but because less biofilm formed in the presence of the CV-700 (at a concentration equal to 10 oz/1000 gal). This also explains why fewer biofilm cells were found in the bulk fluid of reactor 4 (Table 7) and why the reactor was visibly clearer than the other treatment reactors. At time equal to 4 hours, one coupon from each reactor was also inspected under the stereoscope; images are attached to this report as a power point file. A qualitative inspection of the coupon surfaces showed visible biofilm clumps on the coupon surfaces collected from reactors 1 and 3 and less clumping on the coupon surface collected from reactor 4. Interestingly, the surface of a coupon collected from reactor 2 had no visible clumps. Conclusion The results showed that the addition of CV-700 at a concentration equal to 10 oz/1000 gal reduced the biofilm that formed during the continuous growth phase of biofilm development by 2 logs, a difference of practical importance. Adding this biofilm into a treatment reactor containing both the CV-700 and 2 mg/L free chlorine did not result in an additional reduction of biofilm.