Question about Amazfit T-Rex

No, I can't make a call, but it is displayed on the watch and I can hang up or ignore the call. I can also make calls with the Huawei Watch GT2, but it only caused me problems. For example, I picked up the call on the iPhone and suddenly the call was switched to the watch. But I don't know if this problem also exists with Android.

This works well, but after updates you have to disconnect the watch and pair it again, otherwise no messages will arrive.