Obtaining The Asterisk Source

Obtain a copy of all of the latest Asterisk sources from Digium. The sources are in:

     http://downloads.digium.com/pub

We generally always get these:

     asterisk/asterisk-vernum-current.tar.gz
     asterisk/asterisk-addons-vernum-current.tar.gz
     telephony/dahdi-linux-complete/dahdi-linux-complete-current.tar.gz

Optionally, you may want to get the PRI library (e.g. if you'll be setting up a T1 connection):

     libpri/libpri-vernum-current.tar.gz

And, if you want SpanDSP (a library of many DSP functions for telephony that range from simple modules, such as DTMF detection, to a complete software FAX machine), you can find it here:

     http://soft-switch.org/downloads/spandsp/spandsp-0.0.6pre17.tgz

The current version of SpanDSP, in wide use, is 0.0.6pre17. But, SpanDSP is under continuous development and, although many of the functional modules in SpanDSP, like the soft FAX machine, have been providing good service to many people for a long time, subtle issues affecting small numbers of people are constantly being addressed. So, make sure you get the latest version of SpanDSP from the source mentioned.

SpanDSP is used by various popular applications packages, for example: