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Wednesday, March 16, 2016

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What is To Header Field in SIP?

Leke Oyetoke - Wednesday, March 16, 2016

What is To Header Field in SIP?

To header field points out the final recipient of the request. Any response generated by a UA will contain this header field with the addition of a tag. It is a mandatory header.

1. Any response produced by a proxy must have a tag added to the To header field.

2. The To header field URI is never involved in routing.


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