Making Local Calls
Dial the 10-digit number (area code + number).
Note:
By default 7 digit dialing is disabled.  To enable 7 digit dialing, please contact support

Making Long Distance Calls
Dial the 10-digit number (area code + number) or 11-digit (1 + area code + number) to make a local or long distance call.

Making International Calls
Dial 011 + country code + city code + number to dial international calls.

Dialing Extension to Extension
Dial the extension number

To page an extension dial *80 + extension number