Vodafone Mobile Connect Card Driver for Linux makes it easy to get connected with any of the GPRS/3G cards supported. Besides managing connections with different technologies like GPRS, UMTS, and HSDPA, this applications supports receiving and sending SMS, access to contacts, and offers diagnostics information for troubleshooting.
Thunderbolt is a middleware infrastructure suite that includes connectors, Java development libraries, a business process design GUI, and a system monitor GUI. It is appropriate for both telco and financial services. It provides the basis for a simple, efficient integration infrastructure which can be easily extended. While maintaining a SOA in mind, it can easily orchestrate Web services and legacy systems. It's also useful for developing proof of concept projects requiring processing in real time, batch, or both.
KCall is the telephony application of Kontact. It supports computer telephony integration and at the same time integration into KDE's infrastructure. KCall does this by using KDE's addressbook, which in turn can be a server-based groupware addressbook. KCall uses the Decibel realtime communication framework for call management.
The SIP Switch is a Web application which allows you to use multiple SIP accounts on the same phone. This lets you use the call plans of different VoIP companies (using SIP) with one IP phone device. It does the third party SIP registration so you can receive all your calls on the sipswitch account. On dial out, you can set prefixes to make your outgoing calls with such or such provider.
BioCluster is a peer-to-peer clustering platform for Asterisk, the open source PBX, which allows Asterisk to be used as a full carrier-grade telephony solution. It is meant to be installed on several machines together with Asterisk, turning them into a VoIP cluster. While the BioCluster peer-to-peer protocol was initially designed to cater to Asterisk-based clustering solutions, the BioCluster framework is capable of being extended to support various forms of normally unclustered devices or software packages.