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+-- Forum: IP Phone Series (/forumdisplay.php?fid=4)
+--- Forum: General topics (/forumdisplay.php?fid=15)
+--- Thread: Silence on B-Leg, busy tone on A-leg followed by registration fail (/showthread.php?tid=11102)
Silence on B-Leg, busy tone on A-leg followed by registration fail - tekstep - 10-28-2015 04:17 PM
Hello!
We have Freeswitch 1.4.21 x64 and a couple of Yealink T19P,T22,T26P and single T42,T46.
Recently something strange is happening with phones.
Absolutely randomly theres a silence after pickup on callee side and busy tone on the caller side.
Freeswitch log shows NORMAL_TEMPORARY_FAILURE and nothing more.
Immediatly after that the callee phone reports "Registration failed" and starts re-registration which ends successfully. Shortly after re-registration all calls are working normally without any failures.
This issue appears randomly on all our IP-Phones and somehow only on TLS-registered.
Phones registered by UDP are not affected.
Trusted certificates validation is turned off.
Here is a part of T22 syslog from receiving call to hangup.
Could anyone help me with log understanding?
RE: Silence on B-Leg, busy tone on A-leg followed by registration fail - Yealink_Michael - 10-28-2015 05:39 PM
hi
thanks for your information
for this issue , please upgrade the firmware of all phone model to the newest firmware that we released, you can download them from below link :
http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage
just click according to different models
reset and test again
if the issue still exist , may i know the what is the rate of it ? 1 calls in 10 or 20?
please provide us the trace file for future analysis,trace file including pcap file, config bin and syslog file , and we need three of them provide at one time.
for how to get them , please refer to the FAQ below:
http://forum.yealink.com/forum/showthread.php?tid=1319
after you collect all the files , then please send them to support@yealink.com which is 24 hours work
let me know if any question
TKS & BR
Michael
RE: Silence on B-Leg, busy tone on A-leg followed by registration fail - tekstep - 10-29-2015 04:39 PM
All phones have latest non-broadsoft firmware.
Reset have no effect.
Failure rate is almost every call. After registration it works good for 5 minutes or less before the issue reproduced again.
I have sent neccessary files to support@yealink.com