[VoiceOps] Investigating random call completion issues nationwide

[Gavin Henry]

>                 The issue seems to always be the same. Customer from cell phone or landline dials a number, reaches a busy signal or intercept message. All reports are from Verizon or AT&T callers. We check our logs, don’t see any attempt to even reach our system (we log freakin everything). So we reach out to the upstream provider, and they too claim it never reached their tandem/network.

I did see this in the UK yesterday from mobiles calling various
numbers, including our own VoIP numbers. First dial always failed.
Thought the same as you but was various landlines and mobiles. I think
it was the mobile network (O2). Maybe a symptom of a congested core
mobile network?

Thanks.

-- 
Kind Regards,
Gavin Henry.