try 'mhomed=yes' in the global section of your config.

Another option would be to configure ser to listen only to the public IP address and configure the phones to use the public IP address of ser.

Klaus

-----Original Message----- From: Gregory Sandul [mailto:gregorysandul@yahoo.com] Sent: Monday, November 24, 2003 9:22 AM To: serusers@lists.iptel.org Subject: [Serusers] rtpproxy for private networks without NAT and way outside

Hi. Assume I have phones in private network 10.0.0.0/24. There is no NAT server in this network, no default gateway, no way to outside world (except SER). The only server phones "know" about is SER. SER has 2 NIC's one in 10.0.0.0/24 network ip 10.0.0.17 and other in "real" word 201.0.X.X/24. There are some phones (or may be SIP servers) in "real" world. I want to force rtpproxy for outside world and do not for private networks.

I made some test and it fails. If I contact from private network to outside world the Via message contains private SER ip 10.0.0.17 and phone which I need to contact does not know how to contact SER. Also contact in SDP message contains private ser IP 10.0.0.17 because I have forced rtpproxy.

As I understand, it it necessary to modify SDP and SIP messages (contact and Via) in a config script while processing requestst after forcing rtpproxy. Is it possible? May be I missed something, but I have not founded such functions.

Regards, Greg.

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