Radio Repeater RoIP302 Cross-Network Gateway Radio/VoIP/GSM

What is a Cross-Network Gateway?
It enables voice communications among the Radio, VoIP, GSM, andPublic Announce (PA) networks.
It incorporates Radio over Internet Protocol (RoIP) which convertsradio voice communications into VoIP.
It links up various radio networks together in order to extend thegeographical coverage.
It is a GSM voice gateway by enabling voice communications to andfrom the telephone networks (GSM and PSTN)
It enables a voice connection to the public announce system forgeneral and emergency broadcast.
It makes recording of voice communications among various networkssimple and easy.

Who needs a Cross-Network Gateway?
Adio Service Operators who would like to expands their geographicalcoverage.
Radio User who would like to make and receive calls from thetelephone networks.
System administrators who would like to monitor and maintain goodcontrol over the existing radio networks.
System Integrator who would like to build or deploy a reliablevoice communication network in timely manner

Applications
Extending Service Coverage
Radio service coverage is often affected by the geographicallandscape, like high hills. The traditional method is to buildexpensive radio repeaters on the hills in order to extend the radioservice coverage. In addition, its maintenance cost is high and itsperformance is affected by the weather. In this case, the Xtrunkgateways are the perfect solution. They are low cost and easy toinstall and maintain. They offer a very stable and reliable linkbetween the two sites.

Key Specifications/Special Features:

The fundamental of RoIP(Radio over IP)technology is to convert theaudio and PTT signals in a radio terminal into IP packets and thentransmit the data via the IP networks. The challenge in thistechnology is to insure that the audio is transmitted in real timeand the PPT control signal is transmitted immediately and reliably.The radio range is general limited by the restricted transmittingpower, the antenna sensitivity, and other environmental factors.The success deployment of this technology extends the coverage of aradio network without using expensive repeaters or links upmultiple radio networks in the world. In addition, this technologycan also links up the radio world to the VoIP world and thecellular world easily. It truly makes the voice communicationsacross multiple networks possible

RoIP302 series is developed based on VoIP technology to realizeRoIP functions in order to create a new type of gateway to bridgevoice communications across multiple networks (Radio, Cellular,VoIP). Its main advantages are low bandwidth usage, high faulttolerant, low loss in voice quality, fast response, easyinstallation and configuration. It is ideal for setting up aprivate network with multiple voice communication platforms, adistributed network for remote management, a network with extendedcoverage, and an integrated network of multiple amateur radionetworks
RoIP302 Series Cross-Network Gateway has 3 PTT interfaces. Up to 3audio channels from radio networks can be connected to the RoIP302simultaneously. All 3 channels can be programmed into the same ordifferent groups in order to bridge real time voice communicationsto various network interfaces
RoIP302 Series has a built-in GSM/CDMA cellular phone module, usercan access the radio networks connected via the cellular networkinstalled. A radio terminal equipped with DTMF generationcapability can make an outgoing call via the cellular network aswell.