Akuvox E21 Series - Page 2

About This Manual
Thank you for choosing Akuvox’s E21A/V door phone. This manual is intended for end users who need to properly configure the
door phone. This manual is applicable to 21.0.3.xx version, and it provides all functions’ configurations of E21A/V. 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.