Switching of voice connections between IP-networks, and wireless Bluetooth-phones

A pilot project implementing a gateway for switching voice connections between IP-networks and mobile phones that support Bluetooth. Have been implemented the on the server side software based on PBX Asterisk program and a program for mobile phones. For switching connections between Asterisk and the phone was realized version of the protocol SIP, opitimized for work in the Bluetooth pico-net. Thethe switching connections was realized in the following modes:

• Between the public service telephone network and mobile phone, the connection could be established either PSTN or from the phone.
• between two mobile phones.

Technologies: Asterisk, BlueZ, SIP, G.711, AMR