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 Make & 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.
2) What phone service provider (phone company) you have for this phone line?
3) Do you have access to a DIFFERENT phone - such as a cell phone or neighbor's phone - that can be used to place a TEST CALL to your non-working phone number?
Please REPLY using the box below and the SEND button.