Poor battery. After a month, it was necessary to charge. Coverage can be, although it shows 50% this connection is interrupted. The Bell does not ring on the phone, but it says that “you have a guest”. Sometimes it happens that the phone rings me, but not always. I don’t know what it depends on.
A caller module connected to USB at home is some total failure. Calls when he wants, so you can’t rely on him.
So the frenzy is not there, but maybe it is a matter of going deeper through the settings, although I think I have already done it and have not come how to correct the bad things

Product arrived apparently in good condition, it seems to be well built, externally is the same as it presents in the ad, hope it will last, when install I will bring new information

Good product and good seller, very fast delivery

Perfect, but be careful it calculates the current that passes in both directions

Can’t wait to use it!