[OpenSIPS-Users] tcp_blocking_connect for same ip but different listen port

Gupta, Rahul Rahul.Gupta at ipc.com
Fri May 8 18:56:37 CEST 2015

One of the UAC changed its listen port from 5060 to 5070 and sent a new subscription however before the subscription made it to UAS, UAS sent a NOTIFY to UAC to port 5060 and then immediately another NOTIFY to UAC to port 5070

Old setup:
UAC (5060) <---> opensips(proxy) (5060) <---> UAS (5059)
New Setup:
UAC (5070) <---> opensips(proxy) (5060) <---> UAS (5059)

Opensips attempted to forward the first NOTIFY to UAC at port 5060 which obviously timed out with tcp connect failed as expected
First NOTIFY :
NOTIFY sip:user1 at IPADDRESS:5060;transport=tcp SIP/2.0

Opensips sent the 2nd NOTIFY after 10 seconds to UAC at port 5070. If the port specified in SIP URI is different then why the second request is put into the queue and had to wait for 10 sec blocking timeout ?
Seconf NOTIFY:
NOTIFY sip:user1 at IP_ADDRESS:5070;transport=tcp SIP/2.0

Is there any flag/param I can specify in my opensips.cfg file to fix this ?


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