On my account, selecting my google voice # at the number to get text alerts but the confirmation # is never received. The gv number receives and displays texts in hangouts from people with no issues. Any reason comcast would not be able to text google voice.
I don't give out my mobile # to companies as the last time i did it with verizon, i started receiveing trash calls withing two days of signign up.
Same issue. Seems that text messages to Google Voice numbers do not work (tried 7 times). Confirmed that other internet-to-text gateway services do not have a problem, so it is a problem with Comcast's service provider or implementation.