Page 1
Akuvox R20B Series Door Phone Admin Guide Version:V 1.0 Date: 202009...
Page 2
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.
Akuvox R20B is a SIP-compliant, hands-free and video door phone. It can be connected with Akuvox indoor monitors for remote access controlling and monitoring. Users can communicate with visitors via audio and video calls, and unlock the door if they need.
R20B Admin Guide 2. Version This manual applies to hardware 2.0 and firmware 220.30.1.105 version. Please check the firmware version in website Status - Basic. Please check the hardware version in website Status - Basic or the label in the back cover.
Page 9
R20B Admin Guide Housin Aluminum Aluminum alloy Aluminum Aluminum alloy alloy alloy Materia Relay Relay Alarm RS485 √ √ √ √ √ √ √ √ Wiegan optional optional optional optional Reset button √ √ √ √ Operati Linux Linux Linux Linux System 128MB...
Page 10
R20B Admin Guide ature detecti Face recogni tion HDMI Extren al SD card Wall √ √ √ √ Mounti Flush √ √ √ √ Mounti Desk Mounti Wall 185x85x24m 185x85x24mm 185x85x24mm 185x85x24mm Mounti ng DIM Flush 226x108x52 226x108x52mm 226x108x52m 226x108x52mm Mounti ng DIM 2.3W...
R20B Admin Guide consu mption 4. Introduction to Configuration Menu 4.1. Feature Overview Status: This section gives you basic information such as product information, Network Information, and account information etc. Intercom: Intercom call, LED setting, Relay, input control, Live stream, RTSP, ONVIF, motion detection, card setting, etc.
Security: Password modification and certifications 4.2. Mode Selection Discovery mode: It is a plug and play configuration mode. Akuvox devices will configure themselves automatically when users power on the devices and connect them to network. It is super time-saving mode and it will greatly bring users convenience by reducing manual operations.
Akuvox Upgrade Tool: Upgrade Akuvox devices in batch in the LAN. Akuvox PC Manager: Distribute all configuration items in batch in the LAN. IP scanner: it is used to searching Akuvox device IP addresses in the LAN 5. Phone Configurations 5.1. Device Login 5.1.1.
User name and password are case sensitive. Tip: You can obtain the device IP address using the Akuvox IP scanner to access the device web interface. Please refer to URL below for the IP scanner application. http://wiki.akuvox.com/doku.php?id=tool:ip_scanner&s[]=ip&s[]=scanner 5.1.2.
R20B Admin Guide Parameters Set-up: Admin:This item can only be enabled by default that means you can login with username and password as admin/admin. User: This item is disabled by default that means you can login with username and password as user/user. Note: The username and password mentioned below is default value ...
R20B Admin Guide 5.2. Phone Customization 5.2.1. Time&Language Settings When you first set up the device, you might need to set both the time and language to your need or you can do it later as needed. And the time and language can be either be set up directly on the device web interface.
R20B Admin Guide 2. Enter the NPT server you obtained in the field of the NPT sever. 3. Press the Submit button to save the setting and press the Cancel button to cancel the setting. Parameters Set-up: NTP Server: Enter the NPT server you obtained in the NPT server field. 5.2.2.
R20B Admin Guide Photoresistor Settings: Set the minimum and maximum photo-resistor value based on the current actual photo-resistor value detected to control the on-off of the LED light. You set the maximum photo-resistor value for the IR LED to be turned on and the minimum value for it to be turned off. While the default Min/Max photo-resistor value is 1500 and 1600 respectively.
Page 19
R20B Admin Guide The default LED Display Status LED Status Description Blue Always on Normal status Flashing Calling Flashing Network is unavailable Green Always on Talking on a call Flashing Receiving a call Pink Flashing Upgrading Parameters set-up: State: There is five states: Normal, Offline, Calling, Talking and Receiving.
R20B Admin Guide Click Submit tab to save. Parameters set-up: HTTP URL format: http://PhoneIP/fcgi/do?action=LedAction&State=1&Color=1&Mode=2500 Status: 1=Idle; 2=OffLine; 3=Calling; 4=Talking; 5=Receiving; Color: 1=Green; 2=Blue; 3=Red; Mode: 0=Always 1=Always Off; 500/1000/1500/2000/25000/3000 Note: 1.The Status and Color off item can not be changed. 2.The LED of upgrading mode can not be adjusted.
R20B Admin Guide Card LED enable: Click to enable or disable the card reader LED lighting. Start Time (H): Enter the time span for the LED lighting to be valid. Eg. If the time span is from 18-06 it means LED light will stay on during the time span from 6:00 pm to 6:00 am during a day.
Page 22
R20B Admin Guide to enrich your personalized user experience. 5.2.6.1. Volume Configuration To set up the volumes, you can start with the following process: 1. Click Phone - Voice. 2. Enter the volume value in Volume field ,1 is minimum, 15 is maximum. 3.
Page 23
R20B Admin Guide To enable or disable the open door tone, you can do as follows: 1. Click Intercom - Voice. 2. Select Enable/Disable in the Open Door field. 3. Press Submit Tab to validate the setting. Parameters Set-up: Open Door Success Warning: Click the field Enabled or Disabled depending on depending on if you want to hear the prompt words that accompanies that Open Door Success tone.
R20B Admin Guide 5.2.6.4. Upload Ring Back Tone To upload ringback tone, you can start with following process: 1. Click Phone - Voice. 2. Click Choose File tab to upload the .wav files you selected to the device. 3. Click Upload Tab to import the .wav files. 4.
Page 25
R20B Admin Guide default DHCP mode and static IP connection for the device on the device web interface. 5.3.1.1. Network Status To check the network status on the web interface, you can do as follows: 1. Click Status to find Network Information. 2.
R20B Admin Guide 5.3.1.2. Network Mode Configuration To check and configure network connection on the device web interface, you can start with following process: 1. Click Network - Basic. 2. Select DHCP mode or Static IP mode by clicking their respective square box.
R20B Admin Guide within the range from 1024 -65535. Parameters Set-up: Starting RTP Port: Enter the Port value in order to establish the start point for the exclusive data transmission range. Max RPT Port: Enter the Port value in order to establish the end port for the exclusive data transmission range.
R20B Admin Guide Note: The port and IP address value is provided by SNMP server. 5.3.4. Device VLAN Configuration VLAN(Virtual Local Area Network)makes the device under different router work as in the same local area network. In this way, VLAN can keep network applications separate despite being connected to the same physical network, and without requiring multiple sets of cabling and networking devices to be deployed.
R20B Admin Guide 5.3.5. Device TR069 Configuration TR-069(Technical Report 069) is a technical specification entitled CPE WAN Management Protocol (CWMP). It defines an application layer protocol for remote management of end-user devices. To do so, you can do as follows: 1.
R20B Admin Guide 5.3.6. Device Web HTTP Configuration This function is used to manage whether the device website is allowed to be accessed. R20B supports two types remote access method HTTP and HTTPS(encryption). To do so, you can do as follows: 3.
Page 31
R20B Admin Guide 2. Set up correct parameters according to your actual application and deployment. 3. Click Submit tab to validate the setting and Cancel tab to cancel the setting. Parameters Set-up: Server Type: It is automatically set up according to the actual device connection in the network such as SDMC or Cloud or Discovery mode.
R20B Admin Guide 5.4. Intercom Call Configuration Intercom call in the device can be configured to allow you to perform a variety of customized intercom call such as IP call and SIP call for different application scenarios. 5.4.1. IP call & IP Call Configuration IP call can be made directly on the intercom device by entering the IP number on the device.
R20B Admin Guide Tip: Auto answer feature please refer to the chapter 5.4.2. SIP Call You can make SIP call ( Session Initiation Protocol ) in the same way as you do for making the IP calls on the device. However, SIP call parameters related to its account, server, and transport type need to configured first before you can make calls on the device.
Page 34
R20B Admin Guide Parameters Set-up: Account status: Check to see if the SIP account is registered or not. Account Active: Click “enable” or “Disable” to activate or deactivate the registered SIP account. Display Name: Configure the name, for example the device’s name to be be shown on the device being called to.
Page 35
R20B Admin Guide 1. Click Account - Basic to find SIP server1 /SIP serer 2. 2. Enter parameters required. 3. Press Submit tab to validate the setting and Cancel to cancel the setting. Parameters Set-up: Server IP: Enter the Server’s IP address number or its URL. ...
Page 36
R20B Admin Guide Parameters Set-up: Enable Outbound: Click “Enable” and “Disable” to turn on or turn off the outbound proxy sever. Server IP: Enter the SIP address of the outbound proxy server. Port: Enter the Port number for establish call session via the outbound proxy server.
R20B Admin Guide Parameters Set-up: UDP: Select UDP for unreliable but very efficient transport layer protocol. UDP is the default transport protocol. TCP: Select TCP for Reliable but less-efficient transport layer protocol. TLS: Select TLS for Secured and Reliable transport layer protocol. ...
R20B Admin Guide second, then the call will be answer in 1 second automatically. Auto Answer Mode: Set up the video or audio mode you preferred for answering the call automatically. Note: Auto Answer Delay and Auto Answer Mode are available after Auto Answer ...
R20B Admin Guide application. DND: Enable or disable the DND function. DND function is disabled by default. Return Code When DND: Select what code should be sent to the calling device via SIP sever. 404 for “Not found”; 480 for “ Temporary unavailable”...
R20B Admin Guide SIP account. Min Local SIP Port: To configure maximum local SIP port for designated SIP account. Caller ID Header: To choose caller ID header format. There are 6 options - FROM, PAI, PAI-FROM, RPID-FROM, PAI-RPID-FROM, RPID-PAI-FROM. ...
R20B Admin Guide save. 5.4.7. Robin Call Robin call is used to call out multiple numbers which setup in Push Button one by one. If the previous callee do not answer within the robin call timeout, the call will be transferred to next one. If the call is answered by one of callee, the call will not be transferred any more.
R20B Admin Guide 5.4.8. Web Call In addition to make IP/SIP call directly on the device, you can also make the call on the device web interface without approaching to device physically for testing purpose etc. To do so , you can do as follows 1.
R20B Admin Guide Parameters Set-up: Paging Barge: multicast or how many multicast calls are higher priority than sip call, if choose disable, sip call will have high priority Paging priority Active: multicast calls are called in order of priority or not ...
R20B Admin Guide the call. Parameters Set-up: Push To Hang Up : Enable or Disable this function. 5.4.11. Hang Up After Open Door This function is used to automatically hang up the call after triggering the relay. To do so, you can do as follows: 1.
R20B Admin Guide terminate the calling automatically. To do the configuration, you can do as follow: 1. Click Intercom - Basic - Max Call Time. 2. Enter the time duration in in the Max Call Time field. Parameters Set-up: Max Call Time: Enter the call time duration according to your need (Ranging from 0-120 min.).
R20B Admin Guide 3. Click Submit tab to validate setting and Cancel tab to cancel the setting. Parameters Set-up: Dial in Time: Enter the dial in time duration for you door phone (ranging from 30-120 sec.) for example, if you set the dial in time duration is 60 second in your door phone, then the door phone will hang up the incoming call automatically if the call is not answered by the door phone in 60 seconds.
R20B Admin Guide 1. Click Account - Advanced to find Session Timer. 2. Set up the parameters properly. 3. Press Submit tab to valid the setting and Cancel tab to cancel the setting. Parameters Set-up: Active: Click to enable or disable the Call session timer function. Call session timer is “Disabled”...
Page 48
R20B Admin Guide 1. Click Account - Advanced. 2. Select the Account for which you want to apply the codec . 3. Click on arrows and move the codec type left and right in order to enable an disable the codec function. 4.
R20B Admin Guide Note: Audio codecs adjustment is only available for SIP call. 5.5.2. Video Codec Configuration R20B supports H264 codec that provides a better video quality at much lower bit rate with different video quality and payload. To do the configuration, you can do as follows: 1.
R20B Admin Guide Codec Payload: Select the payload type (ranging from 90-118) to configure audio/video configuration file. The default payload is 104. Note: Audio codecs adjustment is only available for SIP call. 5.6. Access Whitelist Configuration R20B supports to store up to 500 contacts who can give a access permission to R20B.
R20B Admin Guide Parameters Set-up: Group: Click the green tab to select the group name you have created. You cannot select the group name If no group name has been created. Name: Enter the contact name, which is required. ...
R20B Admin Guide Parameters Set-up: Name: Enter the contact name, which is required. Phone: Enter the phone number of the contact, which is required. Group: Click the green tab to select the group name you have created. You cannot select the group name If no group name has been created.
R20B Admin Guide 5.7. Door Access 5.7.1. Unlock by DTMF DTMF codes can be configured on the door phone web interface and set up identical DTMF code on the corresponding intercom devices such as indoor monitor, which allows residents to press unlock button on the screen to unlock the door for visitors etc during a call.
Page 54
R20B Admin Guide Relay ID: You are allowed to set up three relay switches in total for the door access control (Relay A, Relay B). Relay Delay (Sec): Set the relay hold delay timing ( Ranging from 1-10 Sec.) For example, if you set the hold delay time as “...
R20B Admin Guide Parameters Set-up: Type: Select DTMF type among five options: “ Inband”,“ RFC2833”, “ Info+Inband” and “Info+RFC2833” according to you need. RFC2833: By filtering rtpevent and checking if there is RTP EVENT packet. SIP INFO: By filtering sip, and checking if there is sip info message. Inband: Not able to see it in the packets.
Page 56
R20B Admin Guide 5. Set the time schedule and limit for the RIFD card access. 6. Change the “Card Issuing” in the Card Status to “Normal”. 7. Click Submit tab for validation and Cancel tab for cancellation. Parameters Set-up: Card Status: Select “Car Issuing” in the field before adding the RFID card and change the status back to “Normal”...
Page 57
R20B Admin Guide be valid for the door access. Frequency: If setup the Tags as “schedule”, you also need to setup the using frequency which means the number of times the card can be used in a special time period ...
R20B Admin Guide 5.7.3. Schedule Setting This function is used to set a special time period for RFID card, which means that residents can only use this card to enter and exit during a certain period of time. 5.7.3.1. Create a schedule To create a schedule, you can do as follows: 1.
Page 59
R20B Admin Guide Parameters Set-up: Schedule Type: Set the type of time period. There are three types to choose from: Daily, Weekly, and Normal. The default is Daily. Schedule Name: Set the name of the time period. Date Time: Set the corresponding time period ...
R20B Admin Guide 1. Choose a existed schedule. 2. Edit the type ,name or date ,click Edit to save. 3. Click Reset to restore the contents of all fields to the initial state. 4. click Delete to remove the selected schedule. 5.
R20B Admin Guide 1. Click Intercom - Card Setting to find RFID. 2. Select Card display format. 3. Click Submit tab to validate the selection and Cancel tab for the cancellation. Parameters Set-up: ICCARD Display Mode: Select the card code format for the for IC card for the door access among five format options: 8H10D;...
R20B Admin Guide 2. Enable/Disabled this feature. 3. Enter the authentication user name and password. Parameters Set-up: Switch: Enable/disable the HTTP command unlock function by clicking on Enable field UserName: Enter the User name of the device web interface, for example “Admin”...
Page 63
R20B Admin Guide 3. Set up the parameters according to your need. 4. Press Submit tab for validation and Cancel tab for cancellation Parameters Set-up: Input service: Select “ Enable “ to be able to use the Input function. ...
R20B Admin Guide 5.7.7. ChimeBell Setting This function is used to trigger a relay when call out. It is often used to some specific scenario. Parameters Set-up: Apply Setting to: There are three option can be chosen “None” “Relay A” “Relay B”.
Page 65
R20B Admin Guide Parameters Set-up: Email Notification Sender’s email address: To configure email address of sender. Receiver’s email address: To configure email address of receiver. SMTP server address: To configure SMTP server address of sender. SMTP user name: To configure user name of SMTP service (usually it is same with sender’s email address).
Page 66
R20B Admin Guide SMTP password: To configure password of SMTP service (usually it is the same with the password of sender’s email). Email subject: To configure subject of email. Email content: To configure content of email. Email Test: To test whether email notification is available. FTP Notification FTP Server: To configure URL of FTP server.
Page 67
R20B Admin Guide Note: Akuvox do not provide HTTP server. 5.8.1.3. Trigger Action by Input To do so, you can do as follows: 1. Go to Intercom - Input to configure. 2. Enable/disable the input service and setup the action related parameters.
R20B Admin Guide Note: Akuvox do not provide HTTP server. 5.8.1.4. Trigger Action by Motion To do so, you can do as follows: 4. Go to Intercom - Motion. 5. Enable/disable the Motion feature and setup the action related parameters.
Page 69
R20B Admin Guide notification message to a monitor unit. The door phone will send the notification to the destination. To setup Motion configuration, you can do as follows: 1. Click Intercom - Motion. 2. Enable/disable the Motion detection feature, and setup the time settings. 3.
R20B Admin Guide 5.8.3. Tamper alarm Tamper alarm function serves as a protection against any unauthorized removal of the devices by triggering off the temper alarm while sending out calls to the designated location. Tamper alarm will be triggered off when the door phone changes its gravity value as opposed to its original gravity value set up when the device is installed To do the configuration on the web interface, please do as follows:...
R20B Admin Guide HTTPS. As the sip communication SSL certificate, upload the self-signed CA certificate to the device, and configure the decryption key to the server at the same time, register the sip account and set the transmission mode to tls, the device can normally perform sip registration and SIP communication such as calls.
R20B Admin Guide Parameters Set-up: The video URL is: http://IP_address:8080/video.cgi The picture URL is: http:// device ip:8080/picture.cgi http://device ip:8080/picture.jpg http://device ip:8080/jpeg.cgi 5.9.2. RTSP The Real Time Streaming Protocol (RTSP) is a network control protocol designed for use in entertainment and communications systems to controlstreaming media servers.
Page 73
R20B Admin Guide an IP network. R20B supports RTSP stream that allows intercom devices such as indoor monitor or the monitoring unit from the third party to monitor or obtain the the real time audio/ video (RTSP stream) from the door phone using the correct URL.
R20B Admin Guide authorization. RTSP Authentication Type: Select RTSP authentication type between “ Basic” and “ Digest”. “Basic “ is the default authentication type. Tip: Basic authentication is an authentication scheme proposed by http 1.0, and its message transmission is not encrypted and converted, so there are serious security risks.
Page 75
R20B Admin Guide Parameters Set-up: Video Resolution: Select video resolutions among seven option: “QCIF”, “QVGA”,”CIF”,”VGA”,”4CIF”,”720P,””1080P”. The default video resolution is “720P. Video Framerate: “30fps” is the video frame rate by default. Video Bitrate: Select video bit-rate among six options: “128 kbps”, “256kbps”, “512 kbps”, “1024 kbps”, “2048 kbps”, “4096 kpbs”...
R20B Admin Guide 5.9.3.2. MJPEG Codecs To configure the parameters, please do as follows: 1. Click Intercom - RTSP to find MJPEG Video Parameters. 2. Set up video parameters according to your need. 3. Click Submit tab for validation and Cancel tab for cancellation. Parameters Set-up: ...
R20B Admin Guide camera heads, video equipment, etc.) produced by different manufacturers are completely interoperable. After the setting is complete, you can enter the ONVIF URL on the third party device to view the video stream. To do the configuration, you can do as follows: 1.
R20B Admin Guide needed. To check the call log, you can do as follows: 1. Click Phone - Call Log. 2. Drop down Call History to filter call log type. 3. Click on the specific call log and click Delete tab to delete. 4.
Page 79
R20B Admin Guide 1. Click Phone - Door log. 2. Click on the specific door log and click Delete tab to delete. 3. Click Delete all tab if you want to delete all of the door logs. 4. Click Export Tab if you want to export the door log 5.
LogLevel: Select log levels from 1 to 7 levels. You will be instructed by Akuvox technical staff about the specific log level to be entered for debugging purpose. The default log level is “3” The higher level means the more specific syslog is saved to a temporary file.
R20B Admin Guide receive the the device log. Note: The remote system server is provided by Akuvox. 5.11.2. PCAP for Debugging PCAP in door phone is used to capture the data package going in and out of the devices for debugging and troubleshooting purpose. You can set up the PCAP on the device web interface properly before using it.
5.12.1. Integration via HTTP API HTTP API is designed to achieve an network-based integration between the third party device with the Akuvox intercom device such R29 series door phone. You can configure the HTTP API function on the web interface for the integration.
Page 83
R20B Admin Guide Parameters set-up: HTTP API: select “Enable” or “ Disable “ to enable or disable the HPTT API function for the third party integration. For example, if the function is disable any request to initiate the integration will be denied and be returned HTTP 403 forbidden status.
R20B Admin Guide 5.13. Password Modification 5.13.1. Modify Device’s Web Interface Password On the device web interface, you can access and change both the project passwords and setting password if needed. 1. Click Security - Basic to find Web Password Modify. 2.
R20B Admin Guide Note: The password is case sensitive. 5.14. Firmware Upgrade 5.14.1. Web Upgrade Firmwares of different versions for door phone can be upgraded on the device web interface. To upgrade the firmware, you can do as follows: 1.
Autop (Auto-Provisioning), this feature is used to configure or upgrade devices in batch via third party servers. Akuvox products use DHCP/PNP/TFTP/FTP/HTTP/HTTPS network protocols to get URL, and then download firmware and/or its corresponding configuration files from that server. These configuration files and firmware will...
Page 87
MAC based configuration file using its MAC address as the ID. 5.15.1.2. AutoP Schedule Akuvox provide different AutoP methods to let the device can do phone provisioning in a fixed time. To setup schedule, you can do as follows: Parameters Set-up: ...
By default, a profile resync is only attempted when Akuvox products are idle, because the upgrade might trigger a software reboot interrupting a call. 5.15.2. PNP for Autop PNP stands for Plug and Play (Plug and Play).
Page 89
R20B Admin Guide Tip: Akuvox do not provide PNP server. 5.15.2.1. Procedures to setup PNP AutoP To setup PNP AutoP, you can do as follows: 1. Click Upgrade - Basic. 2. Make sure PNP(Under the path “Upgrade-Advanced” on the web GUI of device) is enabled.
R20B Admin Guide 4. Upload firmware to DHCP/TFTP/FTP/HTTP/HTTPS server. 5. Edit AutoP config template. 6. Upload the AutoP config template to DHCP/TFTP/FTP/HTTP/HTTPS server. 7. Run PNP server and fill in the URL of AutoP config template. 8. Click start to start PNP AutoP. 9.
Page 91
HTTP: http://192.168.0.19/ (use the default port 80) http://192.168.0.19:8080/ (use other ports, such as 8080) HTTPS: https://192.168.0.19/ (use the default port 443) Tip: Akuvox do not provide user specified server. Please prepare TFTP/FTP/HTTP/HTTPS server by yourself. 5.15.3.1. Procedure to setup User-Specified AutoP To setup user specified autop, you can do as follows: 1.
R20B Admin Guide make it general configuration provisioning.); 2. For general configuration provisioning: r0000000000xx.cfg (There are 12 digits in total, for example: C315 --> r000000000115, R29 --> r000000000029 ) 3. For MAC based configuration provisioning: <MAC_Address of the device>.cfg, eg. 0C110504AE5B.cfg. 4.
5.17.1. Integration via HTTP API HTTP API is designed to achieve an network-based integration between the third party device with the Akuvox intercom device. You can configure the HTTP API function on the web interface for the integration. To do the configuration, please do as follows: 1.
Page 94
R20B Admin Guide Parameters set-up: HTTP API: select “Enable” or “ Disable “ to enable or disable the HPTT API function for the third party integration. For example, if the function is disable any request to initiate the integration will be denied and be returned HTTP 403 forbidden status.
R20B Admin Guide 5.18. System reboot/reset 5.18.1. Reboot If you want to restart the device system, you can operate it on the device web interface . More over, you can set up schedule for the device to be restarted. To restart the system setting on the web interface, you can do as follows: 1.
Page 96
R20B Admin Guide device. To reset the device on the web interface, you can do as follows: 1. Click Upgrade - Basic. 2. Click on Reboot Submit tab to reset the device system setting.
R20B Admin Guide 6. Abbreviations ACS: Auto Configuration Server DNS-SRV: Service record in the Domain Auto: Automatically Name System AEC: Configurable Acoustic and Line FTP: File Transfer Protocol Echo Cancelers GND: Ground ACD: Automatic Call Distribution HTTP: Hypertext Transfer Protocol Autop: Automatical Provisioning HTTPS: Hypertext...
Akuvox IP scanner to search Akuvox devices in the same LAN network. Q2: Do Akuvox devices support opus codec? A2: For now, only Akuvox Android video IP phone R48G can support Opus audio codec. Q3: Do Akuvox devices support Modbus protocol? A4: No.
Page 99
R20B Admin Guide Contact us For more information about the product, please visit us atwww.akuvox.com or feel free to contact us by Sales email: sales@akuvox.com Technical support email: support@akuvox.com We highly appreciate your feedback about our products.
Page 100
FCC Statement: Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) 1) This device may not cause harmful interference, (2) 2) This device must accept any interference received, including interference t may cause undesired operation.
Need help?
Do you have a question about the R20B Series and is the answer not in the manual?
Questions and answers