Review on 📞 Enhanced Communication Flexibility with Grandstream HT813 Hybrid ATA: FXS and FXO Ports by Wiktor Sakowski ᠌

The company has imposed on the population of the 2022 and the Republic of Belarus and closes calls to support. If you contact support from another country, the result is not much better: the answer to the question comes exactly 24 hours later (it can be seen at the last minute before the operator was punished for a long answer) and does not correspond to the topic of the question (it seems that the operator does not read what was detailed described in the body of the message). I have a correspondence with the support of this mode has been going on for three days. In general, you will have to use the old D-Link gateway and forget all Grandstream products like a bad dream.