Joegen,
I compared the OK and NOK scenarios and the 180/200 vs PRACK issue is
evident in both. The only difference I can see is in
sipxbridge.log.nok log at this line
"2012-01-18T13:52:43.293000Z":4445:JAVA:DEBUG:labfr1.swisscom.vpbx:Timer-0:00000000:BackToBackUserAgent:"tearing
down gov.nist.javax.sip.stack.SIPDialog@1de4376 dialogState =
Confirmed Dialog dialog.isServer false"
This tears down one leg of the call and this does not happen in the OK
scenario. I am unable to find in the code why this happens.
Any help will be greatly appreciated as the customer will throw out
sipX tomorrow and put back the Aastra PBX if we dont fix this.
Regards,
Sven
On Tue, Jan 24, 2012 at 12:50 PM, Sven Evensen
<[email protected] <mailto:[email protected]>> wrote:
Hi Joegen,
We got an answer from the Aastra people, here is the response
They means that this issue is a sipxes issue, the sip-dect works
rfc conform. Here you can see the comment
RFC 3262 page 5 tell:
The UAS MAY send a final response to the initial request before
having received PRACKs for all unacknowledged reliable provisional
responses, unless the final response is 2xx and any of the
unacknowledged reliable provisional responses contained a session
description. In that case, it MUST NOT send a final response until
those provisional responses are acknowledged.
Within the scenario we received by capture file, the SIP-DECT is
allowed to send 200 OK before a PRACK is received.
In this scenario the provisional response (180) did not include SDP.
Is the issue from sipX perspective that 200OK comes before PRACK?
And then sipXbridge is in a wrong state, waiting for 200OK and
times out after 45 seconds?
Are there any quick fixes, like increasing that timer or not
starting the timer. What happens if sipXbridge does not send the
PRACK if 200OK already received and not starting the timer?
I can make a sipxBridge patch if needed but would appreciate a
pointer to where this logic is in hte code.
Regards,
Sven
On Thu, Jan 19, 2012 at 2:08 AM, Joegen Baclor <[email protected]
<mailto:[email protected]>> wrote:
When sending compressed archives, please use standard format.
.gz .bz2 and .zip are fine. Most developers are in linux and
doesn't have a ready codec for the rar format.
Nevertheless, the issue is with PRACK. There seems to be a
race condition with aastra and PRACK. It sends out 180
ringing with require 100rel but do not wait for PRACK before
it sends out 200 ok. By the time Prack reaches it, the
INVITE transaction is no longer existing since it was already
termianted by the 200 ok. The aastra then responds with
----Local Host:10.10.21.254---- Port: 5060----
----Remote Host:10.10.20.98---- Port: 5060----
SIP/2.0 481 Call Leg/Transaction Does Not Exist\r
Via: SIP/2.0/UDP
10.10.21.254;branch=z9hG4bK-XX-0708SN3H5vgPjVTQbOneD_1omw\r
Via: SIP/2.0/UDP
10.10.21.254:5090;branch=z9hG4bKbe4d2ce9ba8a26fc3f61f07b480d85e93536\r
From: <sip:[email protected];user=phone>
<mailto:sip:[email protected];user=phone>;tag=51643105\r
To: <sip:[email protected]>
<mailto:sip:[email protected]>;tag=t-6614d043b394e971\r
Call-ID:
[email protected]\r
<mailto:[email protected]%5Cr>
CSeq: 2 PRACK\r
Server: Aastra SIP-DECT (SW-Version=2.1SP4)\r
Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, REFER, NOTIFY, INFO,
MESSAGE, UPDATE, PRACK\r
Content-Length: 0\r
\r
Try disabling 100rel/PRACK in aastra and see if this solves
your issue.
On 01/19/2012 02:48 AM, Sven Evensen wrote:
Hi,
We have a scenario where incoming PSTN calls which are
transferred to an Aastra DECT phone disconnects after about
45 seconds (after transfer).
Scenario is:
- A is external
- B is any phone
- C is Astra DECT phone
- And only when "2 step" transfer is performed.
- Sometimes it does work
This is happening on both 4.0.4 and 4.4 sipX.
Anyone experienced anything similar??
Attached are log file and sip-viewer xml of a failing
scenario and a successful scenario.
Regards,
Sven
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8123 │ mailto:[email protected] │ www.onrelay.com
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