About This Manual
Thank you for choosing Akuvox R20-T30/R20-V3S/R26/E11R/E12/E21 series
door phone. This manual is intended for the administrators who need to properly
configure the door phone. This manual applies to 220.30.3.2, 20.30.4.147,
226.30.2.109, 111.30.2.13, 12.30.1.110, 221.30.1.106 and it provides all the
configurations for the functions and features of Akuvox door phone. Please visit
Akuvox forum or consult technical support for any new information or latest
firmware.