MC820C/830C宽带多媒体电话机（IP可视电话）主要用于IP视频通话、视频会议等应用中，支持SIP协议，支持 H.263, H.263+ 和 H.264。能够与Asterisk进行视频通信，是研究测试Asterisk视频、视频会议、视频网关的好终端。
可视电话机能够与我们的IP-PBX产品对接，实现内部分机视频通话功能，让内部通讯能够声情并茂，音画互动。
| 四路外线IP-PBX | 四路GSM外线IP-PBX | 八路外线IP-PBX |
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本产品制造商为华为。
简捷提供Asterisk视频配置服务以及视频相关开发的咨询服务，配置MC820C/830C能够与Asterisk ，Freeswitch，Elastix以及其他支持SIP视频的SIP服务器软件互通。
Innovative Structure and Appearance
Following the modern design concept, the MC820c/830c mixes stylish and elegant appearance with high quality, and can be a harmonious part of your office and home. The embedded camera can rotate vertically within a considerable angle range. You can also adjust the oblique angle of the LCD to your convenience.
High-Quality Video communication
Applying the self-developed video codec technology, the MC820c/830c supports the H.263, H.263+ and H.264 coding protocols, as well as the CIF and QCIF image formats, The frame rate is up to 30 fps, providing you with clear and smooth video, Processing the audio with professional technology, the MC820c supports the auto adaptation of international audio codec protocols including the G.711 protocol, This provides the audio quality, The dual embedded speakers and unique stereo design add strong sound perspective to the sound effects, making the scene real-like.
Extra Strong Network Adaptability
The MC820c/830c supports configuring of fixed IP addresses and dynamical obtaining of IP addresses through DHCP or PPPoE to adapt to different networking environments. Supporting auto down-speeding and adopting unique QoS mechanism, the MC820c ensures normal audio communications when packet loss occurs in the IP network.
Professional for video/audio
Supports media play from network and local, vivid video and fresh color. Professional design for hi-fi stereo audio, brings you the comfortable experience. Convenient connection for TV set and external speaker. H.264 encoding technology ensure the excellent video/audio experience on low network bandwidth.
User Friendly Operations
Adopting an easy-to-use menu and the operation mode similar to that of a telephone, the MC820c is easier to operate than a PC. The keypad layout design of the MC820c is based on the functions of keys. The software supports shortcut operations. The user-friendly graphic interface is easy to understand and use, giving you a great user experience.
Professional for video/audio
Supports media play from network and local, vivid video and fresh color. Professional design for hi-fi stereo audio, brings you the comfortable experience. Convenient connection for TV set and external speaker. H.264 encoding technology ensure the excellent video/audio experience on low network bandwidth.
Address book Synchronization
Supports the address book import and export between MC820c and PC, avoids the bother of text type.
Complete Security Mechanism
To ensure the security of signaling, media and access, the MC820c provides passwords for configuration, SIP interaction and device authentication. These mechanisms can protect the user data and ensure the security of services.
Enhanced Maintainability
Working with the network equipment of the operators, the MC820c/830C supports the Huawei proprietary feature of "zero configuration operation". The broadband multiplay terminal can display all errors of the system in real time, enabling the users to obtain the related information immediately.
The MC820c/830C supports auto upgrade. This feature not only keeps the system software to be the latest and the most reliable version, but also greatly saves the costs and efforts for maintenance. The unique upgrade protection mechanism can automatically recover the system to the status before the upgrade in case the upgrade process fails due to exceptions or power failure.
Elastix视频通话的支持：
Elastix支持视频通话需要修改sip_general_custom.conf 文件，加入或修改以下内容：
videosupport=yes ;启用视频通话支持
maxcallbitrate=384 ;最大带宽384kbps
allow=h263,h263p,h264 ;加入我们要支持的视频编码
canreinvite = yes ;断网重连
简捷IP-PBX视频通话的设置：
在分机设置里勾选 [ ] 视频通话。
我们提供整体技术支持，并有丰富经验。如您在配置这款话机的时候遇到技术问题，可以咨询我们。
已经有超过30家合作伙伴通过我们的技术支持成功地在内部通信、调度指挥上使用了可视电话视频通话或多方视频会议。主要包括：政府机关，医院，电信运营商，企业。
