User Guide

About This Manual
Thank you for choosing Akuvox’s R20Kdoor phone. This manual is intended for end userswho need to properly configure the door
phone. This manualis applicable to 20.30.3.xx version, and it provides allfunctions’ configurations of R20K. Please visit Akuvox
forum or consult technical support for any new information or latest firmware.
Note: Please refer to universal abbreviation form in the end of manual when meet any abbreviation letter.