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Signaling compression
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<p>For <a href="/facts/Data_compression/gMFuY4FT">data compression</a>, signaling compression, or SigComp, is a compression method designed especially for compression of text-based communication data as <a href="/facts/Session_Initiation_Protocol/cbjUoNqP">SIP</a> or <a href="/facts/RTSP/he6ChB16">RTSP</a>. SigComp had originally been defined in RFC 3320 and was later updated with RFC 4896. A Negative Acknowledgement Mechanism for Signaling Compression is defined in RFC 4077. The SigComp work is performed in the ROHC working group in the transport area of the <a href="/facts/IETF/tIcCsFhX">IETF</a>. </p>