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*56
Call Waiting - Turn on
*57
Call Waiting - Turn off
1408
Voice mail to e-mail - Turn off
1409
Voice mail to e-mail - Turn on
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
1421
Forward calls in sequence - Turn on
1440
Forward calls in sequence - Status
1422
Forward calls simultaneously - Turn off
1423
Forward calls simultaneously - Turn on
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