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draft-ietf-sip-call-auth-06.txt  | SIP Extensions for Media Authorization |
| Author(s)
| David Evans, Warren Marshall, Bill Marshall |
| Organization
| ietf |
| Working group
| sip |
| State
| unknown |
| Date
| 2002-05-23 |
| Size
| 39083 bytes
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| Abstract
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This document describes the need for QoS and media authorization and
defines a SIP extension that can be used to integrate QoS admission
control with call signaling and help guard against denial of service
attacks. The use of this extension is only applicable in
administrative domains, or among federations of administrative
domains with previously agreed-upon policies, where both the SIP
proxy authorizing the QoS, and the policy control of the underlying
network providing the QoS belong to that administrative domain or
federation of domains.
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