A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : The Session Initiation Protocol (SIP) INFO Method
Considered Harmful
Author(s) : J. Rosenberg
Filename : draft-rosenberg-sip-info-harmful-00.txt
Pages : 11
Date : 2003-1-6
The Session Initiation Protocol (SIP) INFO method defines a means for
transporting mid-dialog application layer data between user agents.
Its initial use was to support the transport of ISUP mid-call
messages which could not be mapped to any other SIP request method.
However, since its initial usage for that purpose, INFO has seen
widespread abuse as a means for introducing non-standard and
non-interoperable extensions to SIP. For this reason, we now believe
INFO should be considered harmful, and therefore, deprecated in its
current form.
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