Title: Session Initiation Protocol for Telephones (SIP-T): Context and Architectures
Author(s): A. Vemuri, J. Peterson.
Status: BEST CURRENT PRACTICE
Date: Sep 2002
Length: 49893
The popularity of gateways that interwork between the PSTN (Public Switched Telephone Network) and SIP networks has motivated the publication of a set of common practices that can assure consistent behavior across implementations. This document taxonomizes the uses of PSTN-SIP gateways, provides uses cases, and identifies mechanisms necessary for interworking. The mechanisms detail how SIP provides for both 'encapsulation' (bridging the PSTN signaling across a SIP network) and 'translation' (gatewaying).
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