OK, based on comment #7 which details a URL prefixed with "vvm" and Bill's screenshot in comment #9 which show an URL onscreen which also includes an URL with "vvm", my conclusion is that these two SIMs have been enabled for AT&T's Visual Voice Mail which isn't supported by Touch yet.
I enabled Basic VoiceMail on my phone with an AT&T SIM ( GoPhone ), and I don't receive any weird control messages, and VM notification works as expected.
@Pat & @Bill
Can you both please call customer service and confirm whether or not your SIM has been provisioning for VVM? If so, you should probably have the operator disable it and re-provision Basic Voice Mail.
OK, based on comment #7 which details a URL prefixed with "vvm" and Bill's screenshot in comment #9 which show an URL onscreen which also includes an URL with "vvm", my conclusion is that these two SIMs have been enabled for AT&T's Visual Voice Mail which isn't supported by Touch yet.
I enabled Basic VoiceMail on my phone with an AT&T SIM ( GoPhone ), and I don't receive any weird control messages, and VM notification works as expected.
@Pat & @Bill
Can you both please call customer service and confirm whether or not your SIM has been provisioning for VVM? If so, you should probably have the operator disable it and re-provision Basic Voice Mail.