At first, satisfied: good compatibility, correct day duration. The battery gave up the ghost after four months, leaving me thinking it was a failure dial telephone, ... In short, two months later, I get my phone to the corner store (During holidays they are overloaded) to be told that this is only a battery problem. The filing of the unit, I ensured that I had to change it and that it therefore could not come from that ... and if. So disappointed ... :(