Configuring the LANCOM

This is how the LANCOM is configured for operation at a point-to-point line:

1. The LANCOM is configured for operation at a point-to-point line by adding two simple entries in the ISDN mapping table and in the list of ISDN users. ISDN mapping table

   MSN/DDI	ISDN/S0 Bus	Internal number	Comment
   #	ISDN1, ISDN2	#	Outputs the unchanged DDI as an internal telephone number.

   ISDN user list

   Internal number	MSN/DDI	ISDN/S0 Bus	Comment
   #	#	ISDN3, ISDN4	Outputs the unchanged internal number as a DDI.

2. When configuring SIP clients, just the internal VoIP domain of the LANCOM VoIP Router and the associated internal number are entered. The extension numbers previously used for the ISDN terminal devices remain unallocated.
3. A SIP provider line is created for the SIP account. The 'Trunk' option is selected as the mode for this line.
4. Routing of calls is governed by the call routing table. When using the Wizards available with LANconfig, the call routing table is pre-configured such that all out-going calls from ISDN and SIP devices are made using the SIP trunk account (with the exception of local calls and calls to service numbers such as the emergency services or "0800" numbers).