Description: 1-PPT Port Cross-Network Gateway RoIP102 is to convert the audio and PTT signals in a radio terminal into IP packets and then transmit the data via the IP networks. Generally, the radio range is limited by the restricted transmitting power, antenna sensitivity and other environmental factors. RoIP technology is developed to solve those problems and insure that the audio is transmitted in real time and the PTT signals are transmitted immediately and reliably, making the long distance voice communication across multiple networks possible. Key Features: Open Standard VoIP Protocols (IETF SIP V2) Two 10/100 Ethernet for WAN / LAN connections Supply dynamic DNS service Speech quality ensured by QoS at the Ethernet and IP layers and comprehensive jitter buffer Line Echo Cancellation VLAN and QoS support NAT Transversal and Router functions Support IP voice stream to via a recording server Highly stable embedded Linux operating system in high performance ARM 9 Processor Enhanced Features: Dynamic selection of codec Advanced jitter buffer Automatic traversal of NAT and firewall VLAN / Qos Router Echo cancellation for Speakerphone Comfort noise generation (CNG) Voice activity detection (VAD) Auto provisioning (requires auto provisioning server) On line firmware upgrade Multi-language support: English and Chinese Competitive Advantage: Support standard SIP protocol Support DDNS Support ulaw alaw g.729 g723 etc code Built in Linux OS Peer to Peer provided
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