Integrated Services Digital Network Q.921-User Adaptation Layer
RFC 4233, “Integrated Services Digital Network Q.921-User Adaptation Layer”, is a Proposed Standard document published in January 2006 by K. Morneault, S. Rengasami, M. Kalla, G. Sidebottom. It obsoletes RFC 3057. It has since been updated by RFC 5133. The canonical text is published by the RFC Editor.
Abstract
This document defines a protocol for backhauling of Integrated Services Digital Network (ISDN) Q.921 User messages over IP using the Stream Control Transmission Protocol (SCTP). This protocol would be used between a Signaling Gateway (SG) and Media Gateway Controller (MGC). It is assumed that the SG receives ISDN signaling over a standard ISDN interface.
This document obsoletes RFC 3057. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 4233 is hosted at rfc-editor.org. Available in TXT,HTML.
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