About This Manual
Thank you for choosing Akuvox’s R20B series (this series includes R20BX5,
R20BX4, R20BX3 and R20BX2) door phone. This manual is intended for the
administrators who need to properly configure the door phone. This manual
applies to hardware 220.0 and firmware 220.30.1.105 version, and it provides
all the configurations for the functions and features of R20B series door phone.
Please note that for a better understanding, our software does not distinguish
between models, and they are displayed as R20B. Please visit Akuvox official
website or consult Akuvox technical team for any new information or latest
firmware.
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