Hello,
be sure you call route(NATMANAGE) for UPDATE request and set an
onreply_route where the reply will be handled and you have to call there
route(NATMANAGE) as well.
Cheers,
Daniel
On 5/16/12 12:45 AM, Spencer Thomason wrote:
Hello,
I'm working on a residential type application where we are using Kamailio for
NAT traversal and Freeswitch as a voicemail and media server. When a UA that
is behind NAT sends an INVITE to check voicemail everything works correctly
until the user listens to the message. The sdp in the initial INVITE is
rewritten and rtp proxy is working but Freeswitch (on a public IP) then sends
an UPDATE to display the caller name of the person who left the message. The
problem is that the UAC (in this case a Polycom phone) then responds with its
private IP in the SDP. Is there a was to handle these UPDATEs? I'm using
Kamailio 3.2.3 with a fairly stock config. This is an excerpt of the config
file with the NAT handling route:
# RTPProxy control
route[NATMANAGE] {
if (is_request()) {
if(has_totag()) {
if(check_route_param("nat=yes")) {
setbflag(FLB_NATB);
}
}
}
if (!(isflagset(FLT_NATS) || isbflagset(FLB_NATB)))
return;
rtpproxy_manage();
if (is_request()) {
if (!has_totag()) {
add_rr_param(";nat=yes");
}
}
if (is_reply()) {
if(isbflagset(FLB_NATB)) {
fix_nated_contact();
}
}
return;
}
Thanks,
Spencer
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Daniel-Constantin Mierla - http://www.asipto.com
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