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In this paper, we present a Linux-based Radio over IP system. The system is a cost-effective IP interoperability communication system that integrated the mobile radio, typical public switched telephone network lines, cell phone, native IP devices etc. All equipment can access the communication with each other via IP network using hardware-software coordination on asterisk SIP IP-PBX running under...
Communication via IP can enable the interconnection between many different kinds of communication devices such as cell-phones, 2-way radio, PSTN, Internet phones, VoIP phones, etc. The important key of operating the radio communication or radio-phone hybrid communication is the Voice Operated eXchange (VOX) design by applying an auto-answer mode that supports the accurately enable and disable the...
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