Buch1 > Functions, Uses, Concepts > Exchange Line Request
Exchange Line Request
The PBX distinguishes three types of exchange line requests:
Internal phone: The user has to dial an external number with preceding Exchange line access number.
Direct exchange device: For an external number no prefix is required. However, the user has to dial an internal number with preceding **.
Automatic exchange line request (factory setting): Neither external nor internal numbers require a prefix (exception: ** for targeted VoIP access). The PBX automatically distinguishes between internal and external numbers with the adjustment of the dialled phone number and the internal dial plan:
If the phone number is contained in the dial plan, the PBX establishes an internal connection.
If the phone number is not contained in the dial plan, the PBX establishes an external connection.
*Note: The behaviour of the phones COMfortel 1400 IP/2600 IP/3200/3500/3600 IP when dialling phone numbers depends on the configured default account (see manual of the phone). With the phones COMfortel 1400 IP/2600 IP/3600 IP as of firmware 2.4 the default account can be configured depending on the exchange line request type.
*Note: The short code number is a part of the internal dial plan and is therefore an internal number. However it leads to an external connection.
*Note: In order that the distinction between internal numbers and phone numbers in the local area network functions, the internal dial plan must not contain phone numbers that also occur within the local area network. To avoid conflicts, phone numbers of the local area network should always be dialled with local area code.
*Note: Also when the entered phone number correspond with the internal dial plan, the PBX waits up to 4 seconds for whether additional digits for an external number are being entered, before it dials the internal number. To avoid waiting time, you can subsequently enter #. The PBX therefore recognises the input as finished and instantly starts dialling.
*Note: In factory settings, the system-wide automatic exchange line request (for all subscribers) is switched on. Alternatively, the exchange line request type can be set separately for each subscriber. In this case, the automatic exchange line request can only be selected for IP DECT phones, COMfortel 1200 IP and COMfortel C-400. For all other subscribers, only direct exchange line phone and internal phone can be selected.
*Note: When dialling a phone number that begins with digits and for which a macro short-code number is stored, the phone number must be dialled including the area code.
Configuration procedure:
Making settings for exchange line request.
Using the Configuration Manager: Public switched tel. networks > Exchange Line Request)
Making settings for exchange line request separately for subscribers.
Using the Configuration Manager: Subscriber (scr.) > Properties > Settings > Special functions)
*Note: This setting is only visible, if System-wide automatic exchange line request is disabled