Delator is a telephone/PBX call accounting system. It works with a PBX Lucent Definity G2 and a serial connection to store information in a PostgreSQL database. It has a Web interface which can give monthly reports of the use and cost of each call, from what extension each call was made, what number was called, etc.
CT Server is a Perl module that interfaces with Voicetronix computer telephony cards, giving developers a method of creating quick and creative computer telephony applications. A complete PBX is included as an example, which includes a Web interface for configuring and monitoring the PBX.
MMS Diary is a mobile phone weblog/diary for use when you are on holiday. It uses MMS (Multimedia Messaging Service) as a transport to upload texts and photos to your homepage. This is done with a PHP script that pretends to be an MMS proxy relay (the server that receives MMS messages is sometimes also referred to as MMSC).
CapiSuite is an ISDN telecommunication suite providing easy-to-use telecommunication functions which can be controlled from Python scripts. It uses a CAPI-compatible driver for accessing the ISDN-hardware, so you'll need a CAPI-compatible driver. CapiSuite is distributed with two example scripts for call incoming handling and fax sending. They provide a multi-user answering machine with fax recognition, remote inquiry, and fax receiving/sending functions.