[Test user]

I am trying to use the DUN over Bluetooth with a Nokia6310 phone. If I insert the setting AT+CBST=71,0,1 as part of my setup data mode, the subsequent dial fails. That is the phone will display data call connected but I do not receive the CONNECT response. If I do not add the CBST command, then the dial is successful but takes too long(20s ) for the CONNECT. However, the same SW (5.50) in Europe GSM N/w gives no problems in dialing and uses the same CBST setting. Could somebody clarify what is the difference in US vs Europe N/w settings + phone profiles that would lead to the dial failure in my testing.