Hello,

I am sending NOTIFY packet with event "check-sync" to reload phone
configuration.

I am doing it with opensips FIFO mi.

My command looks like this:
opensipsctl fifo t_uac_dlg NOTIFY sip:[email protected] . . '"From: <
sip:[email protected]>;tag=8755a8d01aa27e903a6f4ccaf393f04\r\nTo: <
sip:[email protected]>\r\nEvent: check-sync\r\n"'

When I use IP address in RURI (sip:[email protected]) it works as expected.

However, when I use domain name in RURI (like this:
sip:[email protected]) and my command looks like this:
opensipsctl fifo t_uac_dlg NOTIFY sip:[email protected] . .
'"From: <sip:[email protected]>;tag=8755a8d01aa27e903a6f4ccaf393f04\r\nTo:
<sip:[email protected]>\r\nEvent: check-sync\r\n"'

I have two Via headers in my resulting NOTIFY packet with different branche
tags:

NOTIFY sip:[email protected] SIP/2.0.
Via: SIP/2.0/UDP 10.130.8.20:5060;branch=z9hG4bK0872.598957f2.0.
Via: SIP/2.0/UDP 10.130.8.20:5060;branch=z9hG4bK0872.498957f2.0.
To: sip:[email protected].
From: <sip:[email protected]>;tag=734c62bd59eb9f33d3e6313898450dd1.
CSeq: 10 NOTIFY.
Call-ID: [email protected].
Max-Forwards: 69.
Content-Length: 0.
Server: ETS voip router01.
Event: check-sync
.


In first case, I do not even see the packet in main route but I see it in
local_route.

In my second case I see it in main route but the packet is sent with double
Via header.

I am sure it is not my routing script, because I have just put a forward to
some IP whenever NOTIFY is received and I still have this problem.

Is it a known issue?

Everything still works fine, but having a double Via in logs a bit
confusing.

Thank you,
-- 

Stas Kobzar

Developeur VoIP / VoIP Developer

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