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Wednesday, March 16, 2016

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What is Require Header Field in SIP?

Leke Oyetoke - Wednesday, March 16, 2016

What is Require Header Field in SIP?

The Require header field is generally used to list characteristics and extensions that a UAC requires a UAS to maintain with the aim of processing the request.

A 420 Bad Extension response is returned by the UAS listing any unsupported characteristics in an Unsupported header field.


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