I would like to know if the above MTA Modem is compatible with Comcast.
I just started with Comcast last week.
It may be depending on where you got it. If it happens to be listed in their database as being stolen, then they won't provision it for service. Also, the current consensus is that the only customer-owned telephony modem approved by Comcast is the Arris TM722G, which you must purchase from your local Best Buy (if available) that has a Comcast Communications Center/kiosk. About $150 for the modem plus professional installation. Some stores/areas will allow a "self install". Those may supply a kit that looks like this;