The <speed dial> MUST NOT be done by you. You have to do it with OBiTalk portal such that OBiTalk database registers which OBi devices belongs 'My OBi Devices'. For example I have two OBi110-A and OBi110-B and they are My OBi Devices via the OBiTalk portal.
Speed dial
1 Softphone OBi Number
2 OBi110-A OBi Number
3 OBi110-B OBi Number
OBi110-B's primary trunk (line) is GV on SP1 and LINE port is connecting with the Telco PSTN. Following my previous procedures to 1) disable the autoprovisioing and 2) add one for direct the one-stage call to the LINE port.
In OBi110-A location, one picks up the phone
3**8+<PSTN number to be dialled via OBi110-B LINE port>