Passive forwarding from local to external users

  1. An external user A (at a SIP PBX line) makes a call to an internal user B (SIP, ISDN or analog).
  2. A makes an additional call to an external user D (who is also a subscriber to the same SIP PBX line as A).
  3. The external user A then initiates a connect from B to D. The LANCOM VoIP router needs to establish a connection to D for this.
Note: The LANCOM VoIP router can only establish this connection if D can be reached via the same SIP-PBX line as A, i.e. if external call forwarding is permitted.




Note: Requires that the VoIP PBX fully supports Transfers in SIP (re-invites).

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