... Cross-Network Gateway?It enables voice communications among the Radio, VoIP, and Public Announce (PA) networks.It incorporates Radio ... Internet Protocol (RoIP) which converts radio voice communications into VoIP.It links up various radio networks together in order ... Multi-language support: English and Chinese Supported StandardsITU: H.323 V4, H.225, H.235, H.245, H.450 RFC 1889 - RTP/RTCP RFC 2327 – ...