The #1 handset on my Vtech phone got wet, and when I receive a call, the caller can barely hear me. The #2 handset works fine. Do I need a new handset?

You may view/download a copy of the manual at Owners Manual User Guide for Vtech CS6829 26 2 Handset Answering System...
Setup instructions begin on page 5.

Phone numbers for US and Canada are given at Contact Us VTech Cordless Phones

Place the handset on the base. See "Add and register a handset" on page 23 of the manual: Owners Manual User Guide for Vtech 2 handset cordless phone system caller...

Sounds like you have a defective microphone in your handset. Maybe caused by dropping of phone or water damage. Try land line phone not cordless. Just to ensure that you can hear the caller and can be heard over your phone line.

If you can complete a call successfully go and purchase another cordless phone.

best take em back to the shop as they are faulty..Tell em ya want a refund and go to Walmart and get yourself a uniden 3 pack cordless phone for $35 on sale.

I had the same problem - until today. Seems that the phone jack wiring in my living room needs repairing. Receiving and making calls is no problem, but the Caller ID is first to go (according to phone service provider). I tried out the phone in the bedroom, and the Caller ID shows up fine. Serviceman coming tomorrow to fix the L/R wiring.

It sounds like you have a defective handset cord or handset. First, at your phone, switch your handset with another phones handset that you know for sure works. From your phone make a test call. If the caller can now hear you, the original handset from your phone is defective. If the caller still can not hear you, switch your handset cord with another handset cord from another phone that you know works. From your phone make another test call. If the caller can hear you, then your original handset cord is defective. You can purchase another handset cord from your local office supply store. Your phone uses a standard handset cord. It may be difficult to match the original color of your handset cord. Be sure to take your defective handset cord with you, so you can try to match the color. If the caller still does not hear you. Put your original handset and original handset cord back on your phone. Then plug your phone in to another wall jack, that you know works with another phone. The other phone needs to be an identical phone to yours (same number of buttons and same model number. The model number can be found under the phone). Wait approximately 90 seconds, sometimes longer, after you plug your phone into the other wall jack. Now, make another test call from your phone. If the caller can now hear you from your phone with it plugged into another working jack, then you have a defective station port or jack where your phone was originally plugged in at. If the caller still can not hear then you have a defective phone.

Try the "hard reboot". /1/ Unplug power from base station. /2/ Disconnect battery in each handset. /3/ Wait a few minutes. /4/ Reconnect battery. /5/ Re-plug-in power to base station. /6/ Place handset in base station, and wait a few minutes for it to recover.
You may have to reset time/date and/or the handset ##.

do you have dsl

probly it fell or something the speaker needs replacing