19 Apr
2013
19 Apr
'13
10:45 p.m.
I found the answer, for anybody reading this in the future:
The asterisk at IVR was lacking of a default extension, triggering this bug:
https://issues.asterisk.org/jira/browse/ASTERISK-20180
Apparently, Kamailio does not send BYE if OPTIONS returned 404.
--
Ariel Wainer
Contenta Mobile