I have an enviremont,
Mobile devices clinet (iOS, Android) on Linphone.
I am observing that the client session times out or is unreachable after the application goes to background/sleep mode or is not being used for some time.
At that time, when the client is reached over sip like …
AGI Script Executing Application: (Dial) Options: (SIP/923124419969,40r)
== Using SIP RTP CoS mark 5
– Called SIP/XXXXXXXX
I get …
[Apr 7 17:35:31] WARNING: chan_sip.c:3661 retrans_pkt: Retransmission timeout reached on transmission firstname.lastname@example.org:8
891 for seqno 102 (Critical Request) – See wiki.asterisk.org/wiki/display/ … nsmissions
Packet timed out after 31999ms with no response
[Apr 7 17:35:31] WARNING: chan_sip.c:3690 retrans_pkt: Hanging up call email@example.com:8891 - no reply to our critical packet
(see wiki.asterisk.org/wiki/display/ … nsmissions).
== Everyone is busy/congested at this time (1:0/0/1)
I cannot use qualify=yes in realtime as it requires rtcachefriend=yes and i cannot use it , not feasible.
Client, not reachable can make calls successfully, but does not get back
Please suggest any solution!