[HELP]: calls do hangup on pickup with chrome


I do have some issue with answering calls with sipml5. Sometimes the call get dropped/hangup right after answer. The number of dropped/hangup calls increase when having more agents (each agent use one sip account)

I do use real time queue as in http://www.voip-info.org/wiki/view/Asterisk+RealTime+Queue, and my setting for queue is as follow
musiconhold= default
timeout = 5
announce_holdtime = no
retry = 3
warptime = 0
maxlen = 1
strategy = rrmemory
joinempty = strict
leavewhenempty = strict
periodic_announce_frequency =0

rest of the values are null

we are using chrome Version 47.0.2526.106 m, SIPML5 v240 and Asterisk 13.6.

here is the log from Asterisk when the dropped/hangup right after answer happen


Any help is going to be appreciated. :smile:
Thanks and regards