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  1. Return IP address for SDP

    Fixed! The PC had a 2nd network port which was not connected and not preset (ie set for dhcp only). It caused a single route to 255.255.255.255 mask 255.255.255.255 gateway 192.168.0.2 and this confused the PBX assuming that outside traffic thru the other active active NIC 192.168.0.2 being on...
  2. Return IP address for SDP

    I checked the log files. This is pretty old stuff you refer to (from the first configuration). It only illustrates that the PBX was never aware that it connects to an "external" SIP server. As we did not understand this at that time, we adjusted host address etc. many times. Only the last few...
  3. Return IP address for SDP

    Yes / Yes
  4. Return IP address for SDP

    Here is the file. Had to delete some files.
  5. Return IP address for SDP

    Reinvite & Replace is off, audio is on. The router is a linux PC supplied by the provider. It is completely transparent. We feel the point is the distinction between "external" and "internal" interfaces. How is this done? Definitely, the PBX sees no "external" interface. As the router is in the...
  6. Return IP address for SDP

    The problem seems to be the classification of interfaces by the PBX as "external" and "internal". The server is attached via one NIC to the company network, so external traffic goes over it (to our router) as well as internal. The PBX sees all traffic as internal. This is indicated by its port...
  7. Return IP address for SDP

    It is captured by a packet sniffer on our side, ie on the server.
  8. Return IP address for SDP

    Thank you, leejor, for your comments. The provider says that transferring the internal IP address in the mentioned INVITE fields is not conforming. If I have some spare time I may look into SIP definitions to find out. Anyway, other phones and PBXs send the global IP, and it works.
  9. Return IP address for SDP

    That was what the provider supposed to do. STUN works correctly. If we disable STUN and put our global IP in the field "IP for contact and SDP" nothing changes - no SDP packets come in. And no change in the INVITE message. Also the 3CX phone does the same thing and therefore does not work when...
  10. Return IP address for SDP

    We want to use the PBX on one of our servers. We have a fixed external IP. The server is linked thru 192.168.0.2 to a router. Outgoing and ingoing calls work fine but we have can not hear the external sound. Checking packet sniffer logs and talking to our provider, this is due to a problem with...
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