Hello,
We’re testing kamailio
4.3.4 with two kamailio’s communicating with each other. One
of them is a gateway with rtpengine at the carrier side, the
other is a basic sip router.
When calling a
destination and cancelling the INVITE a 487 is received from
the carrier and directly ACK’d by the first kamailio and in
turn is forwarded to the second.
But the 487 response
received by the 2nd kamailio doesn’t have a Via
header which results in kamailio printing the error:
receive_msg(): no via found in reply.
Any ideas why the
forwarded 487 doesn’t contain a Via header and how to fix
this?
Note: IP’s are changed.
Carrier: 10.0.0.1
Kamailio 1: 10.14.0.1
Kamailio 2: 10.14.0.2
U 10.0.0.1:5060 ->
10.14.0.1:5060
SIP/2.0 487 Request
Cancelled.
Via: SIP/2.0/UDP
10.14.0.1;branch=z9hG4bK8e28.642c68037d059634308d4be8fe3f0cdc.0.
From: "+31612345678"
<sip:+31612345678@10.14.0.3:5060>;tag=109ac722.
To:
<sip:003112345678@10.14.0.3:5060>;tag=sbcsipuas_1_C22196_20160314080307791_b59sb10.
Call-ID:
78100MjY3OGExZmMyODU2MzAyMzM5ODA3MmNhMDdlMzg0MzU.
Contact:
<sip:10.0.0.1:5060>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.
.
#
U 10.14.0.1:5060 ->
10.0.0.1:5060
ACK
sip:003112345678@10.0.0.1:5060 SIP/2.0.
Via: SIP/2.0/UDP
10.14.0.1;branch=z9hG4bK8e28.642c68037d059634308d4be8fe3f0cdc.0.
Max-Forwards: 67.
To:
<sip:003112345678@10.14.0.3:5060>;tag=sbcsipuas_1_C22196_20160314080307791_b59sb10.
From:
"+31612345678"<sip:+31612345678@10.14.0.3:5060>;tag=109ac722.
Call-ID:
78100MjY3OGExZmMyODU2MzAyMzM5ODA3MmNhMDdlMzg0MzU.
CSeq: 2 ACK.
Content-Length: 0.
.
#
U 10.14.0.1:5060 ->
10.14.0.2:5060
SIP/2.0 487 Request
Cancelled.
From: "+31612345678"
<sip:+31612345678@10.14.0.3:5060>;tag=109ac722.
To:
<sip:003112345678@10.14.0.3:5060>;tag=sbcsipuas_1_C22196_20160314080307791_b59sb10.
Call-ID:
78100MjY3OGExZmMyODU2MzAyMzM5ODA3MmNhMDdlMzg0MzU.
Contact:
<sip:10.0.0.1:5060>.
CSeq: 2 INVITE.
Server: sbc_5.
Content-Length: 0.