Hello list,

we are trying to migrate from asterisk to openpbx, with which we seem to 
succeed, but during the stress-tests we found something which is maybe a 
bug or something.

We have a testing environment which consists of an old asterisk machine, 
and two openpbx machines. They are wired something like this:

------------    ------------    ------------
| asterisk |----| openpbx1 |----| openpbx2 |
------------    ------------    ------------
   devil1          angie           ngteszt
192.168.1.11    192.168.1.144   192.168.1.139

we are generating SIP calls on the asterisk machine, whose are forwarded 
by openpbx1 to openpbx2. There are 30-60 calls at a time. After a short 
time, when the first calls gets to the end, the openpbx2 machine starts 
to throw these messages in the log:

iCall-NG-teszt
Feb  9 02:13:09 ERROR[1091873104]: chan_sip.c:14315 sipsock_read: SIP MESSAGE 
JUST IGNORED: BYE
Feb  9 02:13:09 ERROR[1091873104]: chan_sip.c:14314 sipsock_read: We could NOT 
get the channel lock for SIP/ngteszt-57c6 - Call ID [EMAIL PROTECTED]

SIP debug:
--- (11 headers 0 lines) ---
Feb  9 02:15:27 ERROR[1091873104]: chan_sip.c:14314 sipsock_read: We could NOT 
get the channel lock for SIP/ngteszt-98f7 - Call ID [EMAIL PROTECTED]
Feb  9 02:15:27 ERROR[1091873104]: chan_sip.c:14315 sipsock_read: SIP MESSAGE 
JUST IGNORED: BYE

<-- SIP read from 192.168.1.144:5060:
BYE sip:[EMAIL PROTECTED] SIP/2.0
Via: SIP/2.0/UDP 192.168.1.144:5060;branch=z9hG4bK5a29b37c;rport
From: "asterisk" <sip:[EMAIL PROTECTED]>;tag=as12347e9e
To: <sip:[EMAIL PROTECTED]>;tag=as4e59f52b
Contact: <sip:[EMAIL PROTECTED]>
Call-ID: [EMAIL PROTECTED]
CSeq: 104 BYE
User-Agent: iCallBox
Max-Forwards: 70
Proxy-Authorization: Digest username="ngteszt", realm="icallbox", 
algorithm=MD5, uri="sip:[EMAIL PROTECTED]", nonce="599cfb75", 
response="4e2a39582caa166280e4d0f220ca53c8", opaque=""
Content-Length: 0


--- (11 headers 0 lines) ---
Feb  9 02:15:27 ERROR[1091873104]: chan_sip.c:14314 sipsock_read: We could NOT 
get the channel lock for SIP/ngteszt-05db - Call ID [EMAIL PROTECTED]
Feb  9 02:15:27 ERROR[1091873104]: chan_sip.c:14315 sipsock_read: SIP MESSAGE 
JUST IGNORED: BYE

<-- SIP read from 192.168.1.144:5060:
BYE sip:[EMAIL PROTECTED] SIP/2.0
Via: SIP/2.0/UDP 192.168.1.144:5060;branch=z9hG4bK02e39847;rport
From: "asterisk" <sip:[EMAIL PROTECTED]>;tag=as29679781
To: <sip:[EMAIL PROTECTED]>;tag=as4f96c5b6
Contact: <sip:[EMAIL PROTECTED]>
Call-ID: [EMAIL PROTECTED]
CSeq: 104 BYE
User-Agent: iCallBox
Max-Forwards: 70
Proxy-Authorization: Digest username="ngteszt", realm="icallbox", 
algorithm=MD5, uri="sip:[EMAIL PROTECTED]", nonce="2e8658c5", 
response="a615c9eb21e8271b8c1af115254b701c", opaque=""
Content-Length: 0



iCall-NG
 Got SIP response 481 "Call leg/transaction does not exist" back from 
192.168.1.139

As we haven't seen anything we could fix by config, we think this can be 
a bug in chan_sip.
At the first time we thought it is because the two sides (devil1 and 
ngteszt) hungs up at the same time, but after we changed this, the 
problem remained.

Regards,
Gergely POLONKAI
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