Your phone requires a modular telephone jack and a standard electrical outlet (110v AC). The outlet
should not be controlled by a wall switch – if the switch is ever turned off, the phone will not operate
properly.

2. Install the base batteries.

Open the battery door on the bottom of the unit by pulling on the tab. Insert the batteries, making sure
that they are in correctly, then close the door.
The batteries are used to save your messages in the event of a power failure.
When the base batteries need to be replaced, the LO BATT BASE Light on the base will blink.

3. Set DIAL MODE switch.

Set the DIAL MODE switch on rear of the base unit to TONE if you have touch tone service, or
PULSE if you have dial pulse (rotary) service. To change dial mode during a call, see Temporary
Tone.

4. Connect the telephone line cord.

The telephone line cord has a snap-in plug on each end. Insert one of the plugs into the jack in the rear
of the base unit. Insert the other plug into a telephone jack. Make sure the plugs snap into place.

5. Set the HANDSET RINGER switch (ON, OFF).

Set the HANDSET RINGER switch on the base unit to ON so the phone will ring. When the switch is
set to OFF, the phone will not ring.

6. Fill in the telephone number card.

On the handset, insert a pointed object into the hole in the window, and gently pry up the window until
it pops out. Write your phone number on the card and replace the window.

7. Install the flexible handset antenna.

The flexible handset antenna has a metal end with a threaded tip. Slide the metal tip straight down
into the hole in the top of the handset. When you feel the antenna reach the bottom of the hole, turn
the antenna clockwise slightly to make sure that the tip is set in place, and then continue to screw the
antenna clockwise until the rubber is snug against the top of the handset. Do not overtighten the
antenna.

8. Plug in the power cord.

Plug the AC adapter on the power cord into an electrical outlet not controlled by a wall switch. When
you connect the unit to an electrical outlet, the system automatically begins formatting digital memory.
The Message Window begins to count down from 8 to 0. When memory formatting has been
completed, “0” will blink in the Message Window to indicate that the system is on, but an
announcement has not been recorded.

9. Charge the handset batteries for 10 hours.

Place the handset in the base and let the batteries charge for 10 hours. You can use your phone before
the 10 hours are up, but be sure to return the handset to the base so it can charge fully. The
CHARGING Light on the base unit will light to show the batteries are charging.

10. Check for dial tone.

Table of contents

AT&T 5635 User Manual

Cordless answering system 5635

Document Outline