I can make and receive calls, but I cannot hear anything.

• Begin the transfer. With the caller on the line, press the "Transfer" key. The caller will automatically be placed on hold and you will hear a dial tone.
• Connect the caller to the other party. Dial the extension of the party you wish to reach. When you hear the extension ring or after you've announced the caller, complete the transfer by pressing "Transfer" a second time. If the person does not wish to receive the call, press "Release" to disconnect from the dialed extension. Press the key beside the flashing arrow on the LCD indicator where the various lines are displayed to return to the caller.
• Cancel an incomplete transfer. If you make an error when dialing and need to retrieve the caller, simply press the key beside the flashing arrow on the LCD indicator.


• Park an incoming call. Parking a call at a designated extension allows the recipient to answer the call from any phone in the facility. With the caller on the line, press the "Park" key twice. If your system designates a particular extension for parked calls, the caller will be held at that extension. Otherwise, the caller is held at your extension. To specify an extension for a parked call, press "Park," dial the desired extension and press "Park" a second time. Replace the handset.
• Retrieve a parked call. On any system phone, press "Park" and dial the extension on which the call is parked. You will be connected to the caller.

Panasonic customer support.

Depends on the software installed on the computer that "answers" the incoming telephone-call.
You could program it to a "silent" ring for certain telephone-numbers -- the caller hears the "ringing" sound, but you don't hear anything.

you can try to use a headset and see if it will work
normally if the caller cannot hear the receiver theres some problem with the mouthpiece. if the headset and loudspeaker works then you have to go to the store and have it fixed.
hope this help

I received no ID on my incoming calls. I have ensured caller taking ID is checked "ON" in phone options but some reason I do not have caller ID on my incoming calls. Anyone help is greatly appreciated. Thanks.

The switch that the handpiece activates is not working. Could be optical, magnetic or physical. It may need cleaning, adjusting or a wire connection repaired. Also check the curly cord and its connections between the handpiece and telephone.

Then visit the nearest service station with the your HH.

Patrick -
I have the reverse problem.  Callers can hardly hear me. I saw a setting in the headunit that allows you to specify where the audio plays for incoming calls.  You can choose the Left Front Speaker, the Right Front Speaker or Both.  Check the manual and make sure its set to both.
Regards, Charlie

cannot hear incoming calls or outgoing calls