eatatparkys
MIS
We recently installed service for Comcast digital voice phone service. Now our US Robotics 56K Fax Modem Model #5686E seems to be humming and buzzing. (We use it to process credit cards as a dial-up backup for our Micros 3700 POS system if the internet goes down.) There are no LED lights lit on the modem. Is there a fix or do we have to get a new modem?