This example shows how to configure a LANCOM when an upstream ISDN PBX is enhanced with VoIP telephony capability. Until now, the MSNs '11' to '13' for the ISDN connection have been used for two ISDN telephones and one analog fax.
Note: The PBX is configured so that subscribers dial '0' to access an
outside line.
The LANCOM is operated on an ISDN PBX extension line.