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Reviews (1)
02 February 2016
Finally a used TM722G that works.
This is the 3rd used Arris TM722G Telephony Cable Modems that I have tried (2 from eBay & 1 from Amazon Mkt). The telephone function didn't work with the 1st one. Comcast informed me that the 2nd one belonged to Comcast & wouldn't connect me. The battery in the 3rd one was bad so I substituted the battery from the 1st one & it seems to work perfectly. Comcast offers rates that the TM722G will not handle but I don't that high a rate. I have a cable modem that works well & it has a battery backup which the one I rented from Comcast didn't.