SIP SIMPLE Client SDK » Python-msrplib

h1. Description 

This library implements Message Session Relay Protocol (MSRP).  MSRP is defined in RFC 4975. The relay extension that can be used for NAT traversal purposes is defined in RFC 4976.

Message Session Relay Protocol (MSRP) is a protocol for transmitting a series of related instant messages in the context of a session. Message sessions are treated like any other media stream when set up via a rendezvous or session creation protocol such as the Session Initiation Protocol (SIP).

A series of related instant messages between two or more parties can be viewed as part of a "message session", that is, a conversational exchange of messages with a definite beginning and end. This is in contrast to individual messages each sent independently. Messaging schemes that track only individual messages can be described as "page-mode" messaging, whereas messaging that is part of a "session" with a definite start and end is called "session-mode" messaging.

Page-mode messaging is enabled in SIP via the SIP MESSAGE method, as defined in RFC 3428. Session-mode messaging has a number of benefits over page-mode messaging, however, such as explicit rendezvous, tighter integration with other media-types, direct client-to-client operation, and brokered privacy and security.

h2. Tar Archives

The software is available as a tar archive at:

http://download.ag-projects.com/SipClient/

h2. Debian Packages

Install the AG Projects debian software signing key:

<pre>

wget http://download.ag-projects.com/agp-debian-gpg.key

sudo apt-key add agp-debian-gpg.key

</pre>

Add these lines to /etc/apt/sources.list:

h3. Debian Stable (Squeeze)

<pre>

# AG Projects software

deb	http://ag-projects.com/debian stable main

deb-src http://ag-projects.com/debian stable main

</pre>

h3. Debian Unstable (Sid)

<pre>

# AG Projects software

deb	http://ag-projects.com/debian unstable main

deb-src http://ag-projects.com/debian unstable main

</pre>

h3. Ubuntu Lucid (10.04)  

<pre>

# AG Projects software

deb	http://ag-projects.com/ubuntu lucid main

deb-src http://ag-projects.com/ubuntu lucid main

</pre>

h3. Ubuntu Maverick (10.10) 

<pre>

# AG Projects software

deb	http://ag-projects.com/ubuntu maverick main

deb-src http://ag-projects.com/ubuntu maverick main

</pre>

h3. Ubuntu Natty (11.04) 

<pre>

# AG Projects software

deb	http://ag-projects.com/ubuntu natty main

deb-src http://ag-projects.com/ubuntu natty main

</pre>

h3. Ubuntu Oneiric (11.10) 

<pre>

# AG Projects software

deb	http://ag-projects.com/ubuntu oneiric main

deb-src http://ag-projects.com/ubuntu oneiric main

</pre>

Install the software:

<pre>

sudo apt-get update

sudo apt-get install python-msrplib

</pre>

h3. Source Code

The source code is managed using "darcs":http://darcs.net version control tool. The darcs repository can be fetched with:

<pre>

darcs get http://devel.ag-projects.com/repositories/python-msrplib

</pre>