A Bit about Cisco voice codecs

I prepared this list of links for students in my Cisco IIUC course to give a bit of background regarding the codecs that Cisco Unified Communications supports as well RTP for media transport and signaling protocols.

Codecs -

http://en.wikipedia.org/wiki/G.711

http://en.wikipedia.org/wiki/G.729

http://en.wikipedia.org/wiki/G.722

http://en.wikipedia.org/wiki/Ilbc

RTP
http://en.wikipedia.org/wiki/Real-time_Transport_Protocol

Call Control

SCCP
http://en.wikipedia.org/wiki/Skinny_Call_Control_Protocol

H.323

http://en.wikipedia.org/wiki/H323

What is a DSP?

http://en.wikipedia.org/wiki/Digital_signal_processor