M3UA
Overview
 
M3UA stands for MTP
Message Transfer Part
The Message Transfer Part is part of the Signaling System 7 used for communication in Public Switched Telephone Networks. MTP is responsible for reliable, unduplicated and in-sequence transport of SS7 messages between communication partners....

 Level 3 (MTP3) User Adaptation Layer as defined by the IETF SIGTRAN
SIGTRAN
SIGTRAN is the name, derived from signaling transport, of the former Internet Engineering Task Force working group that produced specifications for a family of protocols that provide reliable datagram service and user layer adaptations for Signaling System 7 and ISDN communications protocols....

 working group in RFC 4666 (which replaces and supersedes RFC 3332). M3UA enables the SS7 protocol's User Parts (e.g. ISUP
ISDN User Part
The ISDN User Part or ISUP is part of the Signaling System #7 which is used to set up telephone calls in Public Switched Telephone Networks...

, SCCP and TUP) to run over IP instead of telephony equipment like ISDN and PSTN. It is recommended to use the services of SCTP
Stream Control Transmission Protocol
In computer networking, the Stream Control Transmission Protocol is a Transport Layer protocol, serving in a similar role to the popular protocols Transmission Control Protocol and User Datagram Protocol...

 to transmit M3UA.

An open implementation of the M3UA standard can be found at OpenSS7's web site.
Quotations

Excellent plan! Devious minds are attracted to Python, like mimes to unappreciative crowds.

Tim Peters, 13 Nov 1998

Python's syntax succeeds in combining the mistakes of Lisp and Fortran. I do not construe that as progress.

Larry Wall (author of Perl), May 12 2004

Python is an experiment in how much freedom programmers need. Too much freedom and nobody can read another's code; too little and expressiveness is endangered.

Guido van Rossum, 13 Aug 1996

And what defines a 'python activist' anyway? Blowing up Perl installations worldwide?

Ivan Van Laningham, June 2005, on comp. lang. python

Python is more concerned with making it easy to write good programs than difficult to write bad ones.

Steve Holden, June 2005, on comp.lang.python

 
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