At 10:52am our network monitoring alerted us to a issue with our Frontier voice interconnect. At this time we lost our BGP session to them and traffic started routing over diverse paths. This would have caused all active calls to drop while BGP reconverted.
UPDATE01 – 11:10
At 11:02 our network monitoring showed that the interconnect had been resorted and the BGP session has resumed. We have logged a case with our carrier to see if the fault originated from there side as no other session losses were seen from our side.
UPDATE02 – 11:30
We have been advised this is a carrier issues with C4L.