Hello & Welcome to Just Answer,
Sorry to hear of any issue you are having with your phones.
To help you with this issue, may I ask:1) The Make & Model Number of the phone system(s) you are working with?
2) Are these "handsets" part of a single CORDLESS system?
3) What phone service provider (phone company) you have for this phone line?
4) If you have ANY other devices (phones, fax, alarm system, etc.) attached to this same phone line and if so, are they working properly?
5) Was this DSL recently installed?
I now see that you were working with another on this issue.
Please CLICK the link below to continue with that expert.