Hi,
(sorry for posting this to two different lists, but I think there maybe different considerations of this problem)
I have an SER setup with mediaproxy and a Cisco AS5350. The SER/mediaproxy is setup following the guide at www.onsip.org. The AS5350 does just simple mediaconversion (so there are two dial-peers, one for PSTN and one for VOIP). These dialpeers worked fine with a less tightened SER-config, but always had the problem of not giving me any dialtone.
Now, when I dial inwards from PSTN there is a very short dialtone which gets interrupted by silence. So far so good. But, when I pick up the SIP-phone I get an error-message on my PSTN-phone telling that the service was unavailable (yes - I payed my bill :--) and the SIP-phone gets disconnected.
When debugging the AS5350 i noticed that is does net get an rport when dialing inwards:
voip_rtp_create_session: callID=277, dstCallID=-1 laddr=195.234.128.23, lport=18114,raddr=0.0.0.0, rport=0, type=2, sig_tos=3, ip_tos=5
When the SIP-phone is picked up, the AS5350 gets a new information regarding the rport:
May 7 15:39:28 195.234.128.23 57384: ^I State : STREAM_ADDING (2) May 7 15:39:28 195.234.128.23 57385: ^I Callid : 277 May 7 15:39:28 195.234.128.23 57386: ^I Negotiated Codec : g711alaw, bytes :160 May 7 15:39:28 195.234.128.23 57387: ^I Negotiated DTMF relay : inband-voice May 7 15:39:28 195.234.128.23 57388: ^I Negotiated NTE payload : 0 May 7 15:39:28 195.234.128.23 57389: ^I Negotiated CN payload : 0 May 7 15:39:28 195.234.128.23 57390: ^I Media Srce Addr/Port : 195.234.128.23:18114 May 7 15:39:28 195.234.128.23 57391: ^I Media Dest Addr/Port : 62.141.42.76:16032
but immediately after that the call gets disconnected.
When dialing from SIP to PSTN everything seems fine with the rport:
voip_rtp_create_session: callID=278, dstCallID=279 laddr=195.234.128.23, lport=17496,raddr=62.141.42.76, rport=16034, type=3, sig_tos=3, ip_tos=5
I also noticed that there is a difference in the type-value: 2 when dialing inwards and 3 when dialing outwards.
Any ideas why this is happening?
Brgds, Gerd