Very quiet and plaintive sound! Battery down quickly! Schlechter Service unrepentant Siemens the part. Have the beautiful -... thing at the Fritz box is bunder Kerin Support from Siemens, then at a Gigaset DECT system - Siemens. "Perhaps their basic defect" ... ??? Did that thing crush! Would have the money to save for New Year bang stuff. :-(
Addendum. A friend now also such a part. This is much louder but the battery life is also very low.