Digital Private Network Signaling System (DPNSS)/Digital Access Signaling System 2 (DASS 2) Extensions to the IUA Protocol
RFC 4129

Approval announcement
Draft of message to be sent after approval:

From: The IESG <>
To: IETF-Announce <>
Cc: Internet Architecture Board <>,
    RFC Editor <>, 
    sigtran mailing list <>, 
    sigtran chair <>
Subject: Protocol Action: 'DPNSS/DASS 2 extensions to the IUA 
         protocol' to Proposed Standard 

The IESG has approved the following document:

- 'DPNSS/DASS 2 extensions to the IUA protocol '
   <draft-ietf-sigtran-dua-09.txt> as a Proposed Standard

This document is the product of the Signaling Transport Working Group. 

The IESG contact persons are Jon Peterson and Cullen Jennings.

A URL of this Internet-Draft is:

Technical Summary
This document defines a mechanism for backhauling Digital Private Network 
Signaling System 1 (DPNSS 1) and Digital Access Signaling System 2 (DASS 2) 
messages over IP by extending the ISDN User Adaptation (IUA) Layer Protocol 
defined in RFC 3057.  DPNSS 1, specified in BTNR 188, is used to interconnec
Private Branch Exchanges (PBX) in a private network and DASS 2, specified in 
BTNR 190, is used to connect PBXs to the PSTN.  This document aims to become 
an Appendix to IUA and to be the base for a DPNSS 1/DASS 2 User Adaptation 
(DUA) implementation.
Working Group Summary
The SIGTRAN Working Group supported the advancement of this document.
Protocol Quality

This document was reviewed for the IESG by Jon Peterson.