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Google is silently blocking RCS messages on rooted Android phones and custom ROMs
(www.androidauthority.com)
This is a most excellent place for technology news and articles.
Hangouts/Google Talk was great when they had federation and allowed 3rd party clients. After they locked that it went to shit.
I miss the golden age when we had AIM, ICQ, or GoogleTalk, etc all on the client of our choosing.