How do I switch from my handset to the base speaker?

The cable from the base unit to the handset may be faulty or not properly inserted,

There is no outgoing (microphone) volume control, if it is only your set try the handset from different extension. The microphone element may have been damaged (especially if dropped) and have to be replaced. Replacement handsets are not hard to find. If everyone on your system claims that callers cannot hear them, there are some settings on the central switch (KSU) which might help, but only after ruling out a problem on your particular set.

To be check handset speakerphone part or electronic part for that speakerphone. There is difference handset speakerphone and speaker.

Hi
To delete messages you need to first listen to them all on your machine via the BASE, then after all the messages have been played (which can be very boring) press and hold the DEL button. It will then ask you to confirm deletion by pressing OK. Not too sure about the conference call as mine does not have it. If however someone else in the same room wants to listen to the caller you can press the handsfree button (speaker icon) on BASE. If you want to speak to someone within your household in another room, you need to press OK on HANDSET, then press down to INTERCOM, press OK again and it will give you several options, INTERCOM ALL (where all available handsets can talk to each other), or HANDSET 1 or 2 to select a specific one. Hope I have helped and it does not sound too gibberish!
Regards

try unpluggjng base unit from power supply and then let handset unit reset to relocate the base unit.

Room monitoring mode is basically a type of Intercom.


Press the *TONE/exit button on the handset to exit room monitor mode.

I will provide you with link to the user manual of the phone. Have a check at it. Might be useful.

http://www.home-electronics.net/ge/pc/IB/28112EE1_IB.pdf

We just had the same problem with our AT&T 2462 hand sets. They simultaneously stopped transmitting, and though we could hear the caller, no one could hear us on the other end of the line. We unplugged the base from the power source, took the batteries out of the hand sets, waited 20 seconds, then plugged everything back in and they worked just fine. Hope this helps.

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 ##.

mine does it from tme to time and so does my friends.....unusual solution but banging the phone on a table quite hard a couple of times really does the trick.

probly it fell or something the speaker needs replacing