Numbering

Last Updated : Sep 20, 2013 |

The following are the types of numbering:

  • Enterprise Canonical Number (ECN): ECN is unique to Session Manager and can be a public long number, a private long number, or a short or internal number.

  • Public number: A public number must begin with a plus (+) sign.

  • Private alias: A private alias is required for public numbering when telephones, such as Avaya deskphones, are unable to register with a plus (+) sign.

  • Off-PBX Telephony Integration and Mobility (OPTIM) table: This table converts a registration number to a short number. The registration number can be an ECN.

  • Public numbering table: This table converts a short number to a public long number. Communication Manager adds the short number as an avext parameter to the PAI header and the Contact header for messages to the deskphone.

  • Private numbering table: This table converts a short number to a private long number. Communication Manager adds the short number as an avext parameter to the PAI header and the Contact header for messages to the deskphone.

  • Incoming Call Handling Treatment (ICHT); ICHT converts a public or a private long number to a short number.