Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA)

Document Type Replaced Internet-Draft (sigtran WG)
Last updated 2004-04-22
Replaced by draft-ietf-sigtran-rfc3332bis
Stream IETF
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
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IESG IESG state Replaced by draft-ietf-sigtran-rfc3332bis
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This memo defines a protocol for supporting the transport of any SS7 MTP3-User signalling (e.g., ISUP and SCCP messages) over IP using the services of the Stream Control Transmission Protocol. Also, provision is made for protocol elements that enable a seamless operation of the MTP3-User peers in the SS7 and IP domains. This protocol would be used between a Signalling Gateway (SG) and a Media Gateway Controller (MGC) or IP-resident Database, or between two IP-based applications. It is assumed that the SG receives SS7 signalling over a standard SS7 interface using the SS7 Message Transfer Part (MTP) to provide transport.


Greg Sidebottom (
Ken Morneault (
Javier Pastor (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)