[OpenSIPS-Users] Problem with simultaneous CANCEL + 200 OK

Daniel Zanutti daniel.zanutti at gmail.com
Tue Feb 20 11:43:54 EST 2018


I had a problem when receiving simultaneous CANCEL from customer and 200 OK
from gateway.

Seems that the first CANCEL was rejected, but the second CANCEL was
accepted. This second CANCEL did NOT go to the gateway, just Opensips
received and replied with 200 OK.

This is the log of the first CANCEL:
Feb 15 18:39:22 /sbin/opensips[28845]: SCRIPT:TRAFFIC:WARNING: method
CANCEL ( 7Qbq3O3CReMfPflAtl8NY3ddTqPVBHO2785126 at XAeG2xj278512T2 /
1839212581509953 ) not validated and not fixed ( code=-1 )

code -1 is the return of validate_dialog()

Second CANCEL didn't generated a log.

Shouldn't all CANCELs be rejected? On this case, just the first one was

I'm using version 1.9.11.
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