User's Manual

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Header field Supported?

Priority Yes

Privacy Yes

Proxy-Authenticate Yes

Proxy-Require Yes

RAck Yes

Reason Yes

Record-Route Yes

Refer-To Yes

Referred-By Yes

Remote-Party-ID Yes

Replaces Yes

Reply-To Yes

Require Yes

Resource-Priority Yes

Retry-After Yes

Route Yes

RSeq Yes

Server Yes

Service-Route Yes

Subject Yes

Supported Yes

Timestamp Yes

To Yes

Unsupported Yes

User-Agent Yes

Via Yes

Warning Yes

WWW-Authenticate Yes

SIP header fields

SIP Software for Avaya 1100 Series IP Deskphones-Administration November 2012 319