| Function | Usage | Description |
| 011 | 011 + country code + number | International Calling |
| *00 | *00 + Agent ID | Call Center - Agent Logoff |
| *01 | *01 + Agent ID | Call Center - Agent Login |
| *1 | *1 + extension number | Intercom extension to extension |
| *8 | *8 + extension number | Direct call pickup |
| *57 | *57 + extension number | Listen Live |
| *58 | *58 + extension number | Call Barge |
| *67 | *67 + telephone number | Block caller ID |
| *70 | *70 + Dial/Send button | Park Call |
| *71 | *71 + park location + dial/send | Retrieve Parked Call |
| *5000 | *5000 + dial/send | Global Voicemail Access |
| transfer + extension + * |
Transfer call directly to voicemail |
Here are the codes to dial to hear the greetings and/or mailbox owner's name recordings:
To hear the Unavailable Greeting of a mailbox dial *311 + mailbox-number ( ex; *311997 )
To hear the Busy Greeting of a mailbox dial *312 + mailbox-number ( ex; *312997 )
To hear the Owners Name of a mailbox dial *313 + mailbox-number ( ex; *313997 )