They sell modules that ultimately work unstably, and they don't offer refunds. We paid for a year. Technical support, **********, is doing a good job; at least they acknowledge the existing problem, while the others behave as if they are from a village, talking a lot but doing very little. I tried to help them, tested on different devices, but a month has passed and they haven't fixed anything. In reality, the "Telephony" module is unusable. I have saved correspondence and can provide it upon request.
