Aastra Telecom 4223 manual Discrimination and Routing of External Calls

Operations for Outgoing Calls

Discrimination and Routing of External Calls

Usually, you have access rights to the public network and all private networks to which your facility is connected. You also usually have the authorisation to dial any type of external number, most particularly a public number.

In terms of the facility programming dictated by your system administrator, there may be certain external numbers that are discriminated.

Most particularly, this may apply to numbers for service provided by the public network, or certain international destinations. An attempt to dial these numbers would be automatically refused.

Moreover, your facility will also most often be equipped with a Least Cost Routing (LCR) service for external calls, especially if your facility is connected to private networks or different public network operators.

The LCR service therefore automatically ensures that the routing of external numbers you dial will be processed with the least possible cost, or managed according to the most optimal calling route.

Note: The numbers dialled using abbreviated dialling are never subjected to any type of discrimination. If you have a specific need or question concerning discriminated numbers, you may ask your system administrator or facility attendants that the numbers in questions be added to the list of abbre- viated dialling numbers.

MD Evolution – Dialog 4223 Professional 33