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) Are BOTH phone lines in use for this phone, and if so do BOTH lines have this "buzzing noise" in the background?
2) What phone service provider (phone company) you have for this phone line(s)?
3) If you have ANY other devices (phones, fax, etc.) attached to this same phone line and if so, are they working properly?
4) WHEN did this issue first begin?
Please REPLY using the box below.