i have analog voice users connected by Centrex service, wanna use ip networks to by pass long range toll.so i use a cisco router to connect Centrex users to my ip networks.but i don't know what kind of line should i apply from the carrier to connec...

I found that to implement voip you need to know how to interact with the PSTN networks, anyone knows about some website or url talking about things like PBX, DID, DOD ,TRUNK Lines? grateful !!

I 'm new to voip tech.I found that to implement voip you need to know how to interact withthe PSTN networks, anyone knows about some website or url talking about things like PBX, DID, DOD ,TRUNK Lines?grateful !!by the way, thanks ketpatel for your a...

can not read that url, help me, thanks !

1. see this configuration: dial-peer voice 1 voip destination-pattern 555 session target ipv4:10.10.1.1 dial-peer voice 2 voip destination-pattern 5551212 session target ipv4:10.10.1.2 if...