Update: I received my telnamobile SIM yesterday. This morning I tested it and it does register on T-Mobile. When I attempted to call the number, the call went right to generic voicemail. (I then received a SMS saying I had voicemail.) Calls to the SIP address were picked up but the phone did not ring. An attempt to send a SMS failed with a reply SMS saying that SMS was not yet supported. I could not log onto the account management at mytelna.com. I called their very friendly and courteous customer service and they are working on getting the issues resolved. Bottom line, it's still a Beta product. Don't expect out-of-the-box perfection.
