I managed to reproduce the auto-answer bug by sending a SIGSTOP to telephony-service-approver, which makes mission-control timeout the dispatch operation and send the channel to telephony-service-handler, which finally accepts the call, even though it was not approved by any approvers.
Boiko and I agreed to change telephony-service-handler to not accept any new channels in such case. Now we have to figure out why the approver is getting stuck.
I managed to reproduce the auto-answer bug by sending a SIGSTOP to telephony- service- approver, which makes mission-control timeout the dispatch operation and send the channel to telephony- service- handler, which finally accepts the call, even though it was not approved by any approvers.
Boiko and I agreed to change telephony- service- handler to not accept any new channels in such case. Now we have to figure out why the approver is getting stuck.