A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Requirements for End-to-End VoIP Header Compression
Author(s) : J. Ash et al.
Filename : draft-ash-e2e-voip-hdr-comp-rqmts-00.txt
Pages : 0
Date : 2003-2-24
VoIP typically uses the encapsulation voice/RTP/UDP/IP/. When MPLS
labels are added, this becomes voice/RTP/UDP/IP/MPLS. For an MPLS VPN,
the packet header is at least 48 bytes, while the voice payload is
typically no more than 30 bytes. VoIP header compression can
significantly reduce the VoIP overhead through various compression
mechanisms. This is important on access links where bandwidth is
scarce, and can be important on backbone facilities, especially where
costs are high (e.g., some global cross-sections). This draft gives a
problem statement and requirements for end-to-end VoIP header
compression, possibly over MPLS.
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