WHAT DOES YEASTAR DUBAI, GSM GATEWAY, ANALOG VOIP GATEWAY, PBX, MODULE MEAN?

It runs Asterisk, and simply call recording is free. You can find GSM assist, which could help in failover scenarios – and support is unlimited to sellers/resellers/VARs/MSPs. Some mobile phone sorts are supported, and we could expect additional applications and phones to work with the PBX in the future. Rather than replacing your current teleph