Re: I know it's a crazy idea...
BT definitely had significant SIP issues on Friday - if Gamma use them as an upstream provider (ie full outage) or maybe just connectivity to BT is down because of BT. I don't use Gamma so don't know...
Anyone have any details of the BT issue? A major issue with BT connectivity could affect Nationwide if Nationwide use them as a supplier.
Speculation of course - we use BT SIP and while we had some issues, they were unrelated to the larger outage.