28 Oct
2010
28 Oct
'10
10:40 a.m.
Hello,
On 10/25/10 3:49 PM, michel freiha wrote:
Dear All,
Can someone help me to connect my kamilio in order to make a PSTN call
by rewriting host tp PSTN gateway? I changed my config in a manner to
do that...The line is ringing but as soon as I open the line on other
side the call will hangup...Please find the piece of code
# RTPProxy control
route[RTPPROXY] {
#!ifdef WITH_NAT
if (is_method("BYE")) {
unforce_rtp_proxy();
} else if (is_method("INVITE")){
rewritehost("XX.XX.XX.XX");
force_rtp_proxy();
}
if (!has_totag()) add_rr_param(";nat=yes");
#!endif
return;
}
if all and only the calls to gateway go through this route, then it is
ok. Normally, also in the default config, this route is acalled also for
re-INVITEs where you should not change the host part.
To be able to give some hints why the call is hung up immediately, you
have to grap the SIP trace, using ngrep, wireshark or tcpdump. I have
seen such cases when the codecs in 200ok were not appropriate for
caller, so it sends quickly ack and bye.
Cheers,
Daniel
--
Daniel-Constantin Mierla
http://www.asipto.com