Create SIP module for Blackberry

The developed module is intended for realization of telephone conversation between two phones. The voice traffic acts in the module outside (from other module) and is passed to a SIP-server through the Internet-connection 3G \EDGE \GPRS or WiFi. Further the SIP-server passes data to another phone with the same module. The accepted voice traffic is passed by the module outward. The module is responsible for fulfilment of a call, reception \deviation of an entering call and transfer of voice data.