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What is the need of SDP to make a VOIP call?

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What is the need of SDP to make a VOIP call?
posted Nov 23, 2013 by Vikas Upadhyay

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1 Answer

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My Guess -

SDP plays a very important role in a SIP based VoIP call as it is used for describing multimedia sessions for session announcement, session invitation and other types of multimedia sessions initiation. SDP is also used in other VoIP signalling protocols apart from SIP, such as H.323.

answer Nov 23, 2013 by Salil Agrawal
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