I followed 3CX recommendations on support page and bought Sangoma A200 (Recommended) device. There is a http: //www.3cx.com/voip-gateways/sangoma-a200/ - NO LONGER AVAILABLEguide using A200 device where we can read: "The Netborder Express Gateway software (this guide was tested with V2.0 Beta) must be available. " and "The package provided by Sangoma should include the Netborder Express Gateway Software. " Perhaps it is a bad joke, there is no Express Gateway V2.0 (beta or not) included in the package and such version isn't published (it is just planned to be released). It looks like I was tricked by 3CX to spend money for future technology and I'm very unhappy.