What is convergence between PSTN and IP networks? Discuss its implications What are the different

What is convergence between PSTN and IP networks? Discuss its implications What are the different elements in a VoIP architecture? Discuss the role of such elements.

Describe Voice over IP applications. What is SIP CGI? Explain each of the following:

(a) Session Announcement Protocol

(b) Session Description Protocol

(c) H.248

(d) SCTP

(e) SIP to SIP call flow

(f) SIP to PSTN call flow

(g) PTN to IP call flow

(h) Mobile VoIP


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