View the most recent changes for the libexosip2 port at: libexosip2.darwinports.com/diff
Scroll down toward the bottom of the page to get installation instructions for libexosip2.
The raw portfile for libexosip2 3.3.0 is located here:
http://libexosip2.darwinports.com/dports/net/libeXosip2/Portfile
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Check for any related Fink projects here: pdb.finkproject.org/pdb/package.php/libexosip2

The libexosip2 Portfile 54109 2009-07-21 08:28:16Z toby macports.org $

PortSystem 1.0

Name: libeXosip2
Version: 3.3.0
Category: net

Description: The eXtended osip library
Long Description: eXosip is a library that hides the complexity of using the SIP protocol for multimedia session establishement. This protocol is mainly to be used by VoIP telephony applications (endpoints or conference server) but might be also useful for any application that wishes to establish sessions like multiplayer games.
Homepage: http://savannah.nongnu.org/projects/exosip/

Platform: darwin
#license GPLv2
Maintainers: toby

Master Sites: http://download.savannah.nongnu.org/releases/exosip/
Checksums: md5 a2739067b51c1e417c5aef9606b285b2 sha1 4500790461038d85714afe37dd7cfd270b57cbcb rmd160 84be19ce52baea4a648d9140df6534ed73c77761

configure.args --mandir=${prefix}/share/man

depends_lib port:libosip2

livecheck.url http://mirror.its.uidaho.edu/pub/savannah/exosip/
livecheck.regex ${name}-(\[0-9\]+\\.\[0-9\]+\\.\[0-9\]+)\\.tar\\.gz

If you haven't already installed Darwin Ports, you can find easy instructions for doing so at the main Darwin Ports page.
Once Darwin Ports has been installed, in a terminal window and while online, type the following and hit return:

%  cd /opt/local/bin/portslocation/dports/libexosip2
%  sudo port install libexosip2  
Password: 

You will then be prompted for your root password, which you should enter. You may have to wait for a few minutes while the software is retrieved from the network and installed for you. Y ou should see something that looks similar to:

--->  Fetching libexosip2
--->  Verifying checksum for libexosip2
--->  Extracting libexosip2
--->  Configuring libexosip2
--->  Building libexosip2 with target all

--->  Staging libexosip2 into destroot

--->  Installing libexosip2

- Make sure that you do not close the terminal window while Darwin Ports is working. Once the software has been installed, you can find further information about using libexosip2 with these commands:

%  man libexosip2
%  apropos libexosip2
%  which libexosip2
%  locate libexosip2

 Where to find more information: