We have a new phone system almost ready to test.
We have an edge router that is connecting to Verizon's PIP network and will pass the traffic to our internal network on the same router's ethernet interface.
The IP to IP gateway router will actually be the endpoint for the SIP trunk.
We have BGP configured on the edge router and Verizon wants me to advertise our Internal Network via BGP into their PIP network so they can get to the IP2IP gateway router.
Is this common and what security measures are usually used in this setup?
Any information would be helpful.