We currently have 3 SIP circuits coming in but they are all off of ATT. We have redundancy built into the cubes and ATT has redundancy built into the inbound calls. But today ATT had a nation wide outage and of course we were effected and no matter how much redundancy we had built in we could not have avoided this outage.
My question is, is there a way to have SIP circuits from multiple vendors and some how share DID's? That way if ATT does have a national outage I could utilize Verizon's network or vice versa. I really don't want to split up my DID's to one vendor or another.
Let me know your thoughts.
