18 Oct
2016
18 Oct
'16
10:40 p.m.
Dear all,
I am trying to make a call between 2 webrtc clients(sipml5) using my
kamailio IMS setup. The invite request fails at the terminating PCSCF with
error code "Status: 478 Unresolvable destination (478/TM)". I have traced
the packages and saw that the package that arrives at the terminating PCSCF
has an unresolvable request URI due to the websocket connection.
The package being sent from terminating ICSCF to SCSCF has the
"Request-URI: sip:bob@net1.test"
The package from terminating SCSCF to terminating PCSCF has the "Request-URI:
sip:bob@df7jal23ls0d.invalid;rtcweb-breaker=yes;transport=ws"
I guess the terminating SCSCF replaces the request URI with the one it
stored during the registration process, but the terminating PCSCF cannot
resolve the host name&port number; therefore, it reports back "Unresolvable
destination". Is that really the case happening in here ? How can I get
over this problem ? Any ideas are welcome.
Cheers,
Serhat
1 Nov
1 Nov
11:20 a.m.
New subject: Terminating PCSCF unresolvable request URI (Kamailio IMS Websockets)
Hello,
the unresolvable destination should be triggered when the dns server
failed to resolve the hostname in r-uri and in this case it's clear it's
an invalid one being a contact for webrtc. You are not handling
correctly the devices connected over websocket, you have to deal with
them as with devices behind the nat, so you add a contact alias and
handle the parameter in r-uri for requests within dialog -- look at
default kamailio.cfg how the nat traversal part is done.
Cheers,
Daniel
On 18/10/16 22:40, Serhat Guler wrote:
Dear all,
I am trying to make a call between 2 webrtc clients(sipml5) using my
kamailio IMS setup. The invite request fails at the terminating PCSCF
with error code "Status: 478 Unresolvable destination (478/TM)". I
have traced the packages and saw that the package that arrives at the
terminating PCSCF has an unresolvable request URI due to the websocket
connection.
The package being sent from terminating ICSCF to SCSCF has the
"Request-URI: sip:bob@net1.test"
The package from terminating SCSCF to terminating PCSCF has the
"Request-URI:
sip:bob@df7jal23ls0d.invalid;rtcweb-breaker=yes;transport=ws"
I guess the terminating SCSCF replaces the request URI with the one it
stored during the registration process, but the terminating PCSCF
cannot resolve the host name&port number; therefore, it reports back
"Unresolvable destination". Is that really the case happening in here
? How can I get over this problem ? Any ideas are welcome.
Cheers,
Serhat
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Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com
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1 comments
2 participants
participants (2)
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Daniel-Constantin Mierla -
Serhat Guler