My company has a 100Mbps Internet circuit with a 10Mbps SIP trunk provisioned with Internet. The person who ordered the circuit no longer is with the company, and no one seems to know a lot about it.
It has been decided to go with a different carrier for the Internet.
I have contacted the provider and they are saying the SIP trunk was provisioned separate from the Internet.
But, I do not see how this is working:
Is the SIP trunk using the route table in the router where it and the Internet are terminated?
My understanding is that SIP is destined for a subnet we are advertising via Internet. When customers have a SIP call, are they routing to the IP Address advertised from the internet carrier, or do they have a direct link from the remote end to our end?
Any input would be greatly appreciated.