For local registration at the LANCOM, the user just has to send a valid VoIP domain to the SIP proxy and has to be registered as a SIP user. Valid domains include the internal VoIP domains of the LANCOM VoIP router and all of the domains entered for a SIP line.
- For SIP terminal devices in the LAN (SIP telephone or SIP softphone), the domain is entered in the configuration.
- The domain cannot be entered into ISDN terminal equipment; instead, ISDN users have to be registered in the LANCOM configuration with a corresponding entry as an ISDN user.
- To prevent unknown subscribers from registering, authentication at the SIP proxy can be set as a prerequisite to local registration (local authentication). In this case, an entry as a SIP or ISDN user with corresponding password in the LANCOM VoIP router configuration is essential.
Note: Automatic registration without entering a password is restricted to the SIP users in the LAN. SIP users in the WAN require an appropriate user entry and authentication by password.
