Cordless handset phone will not connect to base

See if you need to de-register and register handsets again
see Register or Deregister Uniden Cordless Phone

If you still have a regular phone about, plug it inhere the base handset is connected and see if the symptoms remain. If they do, the problem is likely with your house wiring or the phone company. If no interference on the regular set, base handset may be defective. Try it at someone else's house.

Radio Shack (hurry :) has in-line filters that may clear up line noise.

All he best

I just got off of the phone with Uniden for the same issue with my D1680-4. The alternating "8" - "88" code is an indication that the base is dead. They will be sending me a new base (and 2 handsets). During the call I learned that if you do not have a receipt, Uniden warrants their phones for up to 15 months. The advertised 12 months, plus 3 months for the product to get from manufacturing, through distribution channel and finally sale to the consumer.

Try a new battery. That is usually what "88" means.

Reset Procedure for Cordless Phones
Question:
What is the general reset procedure for cordless phones?

Answer:
1. Disconnect Battery from handset(s)
2. Disconnect Phone Cord from wall jack
3. Disconnect Phone cord from base unit
4. Disconnect AC adapter from wall outlet
5. Allow to sit for 30 min
6. Reconnect Phone Cord to base
7. Reconnect Phone cord to wall jack
8. Reconnect AC Adapter to wall outlet
9. Reconnect Battery to hanset until you click or feel the plug snap into place
10. Re-Register Handset by placing on main base in most instances

hello there i think this is because you need to register the second handset with the base here are the instructions

REGISTRATION
Registration links the base to a cordless handset. Once a handset is
registered it can use the base’s phone connection. A cordless handset will
not operate until it is registered to the base. During the registration
process, keep the handset near the base.
1. Press the flash/program button on the base until LINK HANDSET shows
in the display. 2NO is the default setting.
2. Press the 1 number key or press the MESSAGES/CID (
or) button
on the base to scroll to 1YES.
3. Press flash/program to confirm handset is linked to the base. WAITING
HANDSET REGISTRATION shows in the display.
4. Press the flash/program button on the handset until LINK BASE? shows
in the display. 2NO is the default setting.
5. Press 1 on the handset keypad or cid/vol (
or) button on the
handset to scroll to 1YES.confirmation tone when the handset is successfully linked to the base.
6. Press flash/program on the handset again to confirm. You will hear a long

please leave rating if you find this usefull hope this helps thanx for using fixya!!

For KXTG1000 only

The base unit must be connected to the AC adapter and the power must be on

Press the following sequence of buttons on the base unit: * * 3 3 5 7 8 2

When the display reads "Enter Base ID", deregistration has been completed successfully

For KXTG1050 only

Disconnect the AC adapter

Hold the Locator button down while you plug in the AC adapter

When the Power light flashes, release the Locator button

Immediately press and hold the Locator button again, and release when the In Use light flashes

The Charge light should flash for 4 to 6 seconds and then turn off

When the Charge light stops flashing, press Locator again

In about 20 seconds, the handsets will deregister. When the displays read "Enter Base ID", deregistration has been completed successfully.

You need to reset the main base unit. Unplug the power from the back of the base. While the power is disconnected, press and hold the delete key while reconnecting the power. Wait for a long beep tone. When the display shows 88 or P, press play button one time. If you have a phone without an answering machine, disconnect the power from the back of the base, press and hold find hs button while reconnecting power.

answering machine not working on the base station

in manual it states that you need to give permission on corded base for handset to link to cordless phone.