[Serusers] One path of RTP traffic

Alberto alberto.ipt at telefonica.net
Thu Sep 22 10:55:36 CEST 2005


Hi,
I have a SER + Mediaproxy. I have not any problem the call between SIP clients (behind or not the NATs) 
but when I try to call to PSTN (via cisco) I only have RTP traffic from SIP client to PSTN. 

Summarizing, the path of rtp traffic would have to be from: 

        up:    SIP Client ----> SER ---> GW-PSTN
        down:  SIP Client <---- SER <--- GW-PSTN

but, really is:

        up:    SIP Client ----> SER ---> GW-PSTN
        down:  SIP Client <------------- GW-PSTN

I use the command:

     rewritehostport("212.xxx.xxx.xxx:5060");

when I match a geographic number.

The complete scheme is:

    SIP Client ---- NAT --------- SER+Mediaproxy -------- SIP Server --- GWPSTN



Some idea?

Thanks,

--
Alberto


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