Polycom SoundPoint IP 550 Manual page 24

AT&T Voice DNA 550 / 560
Feature (star) codes
Commonly used feature (star) codes
*00 Last number redial
*60 Turn off music on hold for one call
*67 Caller ID Selective Blocking
*69 Call return
*70 Call waiting off
*72 Forward all calls on
*73 Forward all calls off
*90 Transfer caller directly to voicemail
*96 Intercom
*98 Call park
*99 Call park retrieve
Complete list of feature (star) codes posted on:
http://attcalnettraining.com/manuals-voice-dna.php
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