Andrew Martin wrote:
----- Original Message -----
From: "Joshua Colp"<[email protected]>
To: "Asterisk Users Mailing List - Non-Commercial
Discussion"<[email protected]>
Sent: Monday, May 11, 2015 12:32:06 PM
Subject: Re: [asterisk-users] "Retransmission Timeout" results in dropped calls
after 32 seconds
Andrew Martin wrote:
----- Original Message -----
<snip>
By doing a number of test calls today, I have managed to reproduce this
while
sip debugging was on, so I have that information available now as well:
http://pastebin.com/ZJqzdvY3
This was a call from 113 to 146 via a queue. Note that the asterisk server
is
at 10.10.32.251. I see the following:
INVITE sip:[email protected]:5062 SIP/2.0
SIP/2.0 180 Ringing
SIP/2.0 180 Ringing
SIP/2.0 200 OK
ACK sip:[email protected]:5062 SIP/2.0
INVITE sip:[email protected]:5062 SIP/2.0
SIP/2.0 200 OK
ACK sip:[email protected]:5062 SIP/2.0
INVITE sip:[email protected]:5062 SIP/2.0
INVITE sip:[email protected]:5062 SIP/2.0
INVITE sip:[email protected]:5062 SIP/2.0
INVITE sip:[email protected]:5062 SIP/2.0
INVITE sip:[email protected]:5062 SIP/2.0
This appears to start out with a successful SIP conversation (ending with
the
first ACK), so it is unclear to me why we have two new sets of INVITEs sent
afterwards.
Asterisk has sent a re-INVITE to have the media flow directly. The
device (seems) to respond with the 200 OK (you can tell based on the
CSeq) for the initial INVITE, and not for the re-INVITE. As Asterisk
gets no response to its re-INVITE it gives up and terminates the dialog.
Could this perhaps be because the phone doesn't support "bypass" or re-INVITEs?
Is there a way to disable this functionality and instruct asterisk to just
stay in the middle of the conversation (bridging or native-bridging) for the
duration of the call? I thought that setting directmedia=no and
directrtpsetup=no would disable re-INVITEs and force asterisk to use bridging
mode, but perhaps something else is required?
That should be all that is required. If that were broken I'd expect
issue reports to implode - what's the configuration?
--
Joshua Colp
Digium, Inc. | Senior Software Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - US
Check us out at: www.digium.com & www.asterisk.org
--
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