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General| Tamper-proof | Yes |
|---|---|
| Video Compression | H.264 |
| Camera Angle | 120° |
| Audio | Built-in microphone and speaker |
| Connectivity | Ethernet |
| Network | 10/100M Ethernet |
| Power | PoE (802.3af) or 12V DC |
| Protocols | SIP |
| Operating Humidity | 10 ~ 90% (non-condensing) |
Explains the manual's scope, purpose, and applicable product versions.
Introduces the Akuvox R20B as a SIP-compliant video door phone.
Compares features and specifications across different R20B series models.
Overviews menu features, modes, and tools for device setup.
Covers web interface access, login permissions, session timeout, time, and language.
Configures LEDs, infrared LEDs, and voice volume/tones.
Manages IP settings, RTP, SNMP, VLAN, TR069, HTTP server, and network deployment.
Configures IP/SIP calls, auto-answer, DND, call duration, multicast, and call handling.
Selects and configures audio and video codecs for call quality.
Manages access whitelist, groups, contacts, and RFID card configurations.
Configures door unlocking via DTMF, RF cards, HTTP commands, and exit buttons.
Covers security actions, motion detection, tamper alarms, certificates, streams, RTSP, and ONVIF.
Manages call logs, door logs, system logs, and PCAP capture for diagnostics.
Details integration via HTTP API and automatic phone provisioning (AutoP).
Covers password modification, firmware upgrades, and backup operations.
Explains how to reboot the device and schedule automatic reboots.
Guides on resetting the device to factory default settings via the web interface.
Lists and defines abbreviations used throughout the manual.
Provides answers to common questions about the device's functionality and compatibility.
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