Multi-Site Customer with ISP#

In some cases, customers may require an independent Inter-Site Prefix that is not included as the first digit of a Site Code. For example, for customers who wish to define ISPs per country.

Multi-Site Customer with ISP

Dialing Format (A-Party)

Display Format (B-Party)

Notes

Intra-Site Dialing

  • Extension (for example, 4321 or 54321)

  • ISP + Site Code + Extension (for example, 82554321)

  • Extension

  • ISP + Site Code + Extension

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

Inter-Site Dialing

ISP + Site Code + Extension (for example, 81131234)

ISP + Site Code + Extension

Inter-Site - calls are dialed as ISP + Site Code + Extension

DN Format

Site Code + Extension (for example, 81134321OR ISP + Site Code + Extension (for example, 82554321)

Site Code + Extension

The DN can be constructed with or without ISP