Admin Guide - Mizu Voip

Each simcards can have it’s own GSM engine (in other gsm gateway the engines are used by more simcards)GSM Cell LockBecause Mizu GSM Gateways use only 8 channels, they don’t overuse the gsm network. However, you can setup individual GSM channels to use separatecellsVirtual SimcardsWith the ease of Mizu simbank, your simcards can be stored in a central location, and used in gsm gateways installed at different locations.Delayed network registrationA delay time can be configured to elapse between succesive engine (re)registrations.Intelligent routingBallancing the traffic across your simcard based on price and qualityHandling of incoming callsIn usual GSM gateways there are no simple mechanisms to handle incoming calls from the gsm network. In a Mizu system all calls can be forwarded toyour support team, so each call can be responded accordingly.No GSM network owerloadMizu GSM gateways occupy only 8 channelsFast detection of dead channelsFailovering from simcards blocked by the operator or with wrong qualityAutomatic blacklist generationWrong numbers will be detected and blocked on the server (not forwarded to the gsm network)Minute limitsEach simcard can have different daily, monthly and other limitsTime between subsequent callsCalls will not be forwarded to gsm gateway without a delay between (configurable)SIM BankSimcards can be managed on a central location, and they will “fly” between gatewaysMany other tricksAsk the Mizu support for more details4.8.8. How to setup a gateway behind a NATFor the basic gateway the followin port forward must be applied on your NAT box:-TCP: 1721 (h323 signaling)-TCP: 3386 (remote desktop)-UDP: 44444 (“voice-here”)-at least 16 UDP port for RTP (setup the minrtpport and maxrtpport settings accordingly in the voipgsmgw.ini)(RTP media may work without the port forwarding set explicitly. This depends on caller party)-TCP: 21 (optional for ftp access)