I have a small office with three landlines and one fax line. Just the last few days there is a lot of static. I tried switching a phone from another office but it was even worse.

I'm calling Cox to check the lines to see if that is the problem. The phones are 20 years old and have worked fine, but if they have reached the end of their life what is the best system to replace and potential costs?

I don't need additional lines and don't need a lot of bells or whistles, just landlines that work in a
small business where we use them everyday.

Thanks in advance for any experiences that may help.