Link for carrier level IP telephony infrastructure

[shirishpatil]

can anyone send me a link which is like a SRND for carrier level IP telephony networks.

Thanks for your help in advance.

Regards

shirish

[ebreniz]

The Cisco Voice Infrastructure and Applications (VIA) solution is ideal for service providers that are building next-generation networks. Cisco VIA is a voice-over-IP (VoIP) solution designed to lower network costs and rapidly deliver a multitude of revenue-generating, carrier-class voice transport services

http://www.cisco.com/en/US/netsol/ns341/ns396/ns166/ns68/networking_solutions_solution.html