Using the information during configuration

Dialing plans with ISDN PBX systems: When crossing from the ISDN network to the internal subscribers, the ISDN PBX converts the external MSNs to internal MSNs. When operating a LANCOM VoIP router at the extension interface of the ISDN PBX, the internal MSNs of the PBX are translated to the internal numbers of the VoIP range. For reasons of clarity, we recommend using congruent internal MSNs/numbers for terminal equipment for all connections.

The following table provides a summary of the information required for configuration and where it can be entered. SIP terminal equipment parameters can be entered using the SIP telephone keypad, the corresponding configuration software, or the softphone configuration menu.

  LANCOM SIP terminal equipment ISDN PBX ISDN terminal equipment
Internal VoIP domain    
Internal numbers
External SIP telephone number      
SIP account access data      
External ISDN telephone numbers (MSNs)      
Country and local area code      

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