1410 Voice mail alerts to SMS - Turn off
1411 Voice mail alerts to SMS - Turn on
1434 Voice mail to e-mail - Status
1435 Voice mail alerts to SMS - Status
1471 Last Caller
1418 Call return for 1471 - Turn off
1419 Call return for 1471 - Turn on
Polycom 650 IP Phone User Guide V1.0
1441 Forward calls simultaneously - Status
1406 Withhold number - Turn off
1407 Withhold number - Turn on
1433 Caller ID blocking - Status
1451 Phone Status - Diagnostic info on your phone