Hello & Welcome to Just Answer,
I'm Greg and will do my best to assist you today.
Sorry I didn't see your question earlier and to hear of any issue you are having with your phones.
To help you with this issue, may I ask:
1) The FULL Model Number of the phone system you are working with? If this is a cordless system, that model should be printed on a sticker on the bottom or back of the MAIN base and start with KX-TG.
2) What is the AGE of this system?
3) What phone service provider (phone company) you have for this phone line?
4) WHEN did this issue first begin or was noticed?
Please REPLY using the box below and the SEND button.
NOTE: If you see ANY requests for "additional services" - such as a phone call - please understand that these are sent BY THE SITE (and not me).
Feel free to DECLINE any such offers, and continue in this text/chat form.