Multi-Site Customer with ISP Included in SLC#

The Intersite Prefix (ISP) is included as the first digit of the site code. Currently, VOSS Automate does not support the ISP as a separate component for the Directory Number construction. Without ISP in the DN, a CTI application such as Corporate Directory feature has problems; the DN returned from the Corporate Directory must be manually manipulated before a call can be placed. To work around this issue, Cisco recommends that the ISP be included as the first digit of a Site Location Code (SLC).

Site Customer with ISP in SLC

Dialing Format (A-Party)

Display Format (B-Party)

Notes

Intra-Site Dialing

  • Extension (for example, 4321)

  • Site Code + Extension (for example, 81134321

  • Extension

  • Site Code + Extension

Intra-Site Calls can be dialed as an extension or as Site Code + Extension. Similarly, the calling party number can be displayed either as an extension or as Site Code + Extension

Inter-Site Dialing

Site Code + Extension (for example, 82551234)

Site Code + Extension

The first part of the Site Code is an ISP

PSTN Dialing

  • PSTN Prefix + PSTN Number (for example, 919722221234

  • E.164 Number (for example, +19722221234

  • (PSTN Prefix) + NN

  • (PSTN Prefix) + Local Number

  • E.164 Number (+CC NN)

There are several alternatives for display. Some of the phones support E.164 dialing (including + sign). Some customers prefer to display the number as it would be dialed.

DN Format

Site Code + Extension (for example, 81134321)

The DN format applies to Cisco Unified Communications Manager, Cisco Unified IM and Presence Service, and Cisco Unity Connection