AddPac VP500

AP VP500 is widescreen IP video phone that allows you to get high quality video image with high resolution. This product supports video conferencing, VoD, IPTV, video surveillance, and uses the latest audio / video codecs and various interfaces of audio / video inputs / outputs. AP VP500 has improved features, such as 720P high-resolution support and 12 "LCD screen. The benefits of choosing AP VP500 for video conferencing include high-quality audio, video and high-resolution screen.

AP VP500 is a new device for IP videoconferencing, where the transmission of voice and video is carried over IP networks. This product has improved characteristics such as video codecs H.263, MPEG-4, H.264 and JPEG, interfaces RCA A / VI / O, QoS and such VoIP protocols as SIP and H.323. AP VP500 is a high-tech multi-function IP videophone, which additionally to the unique video transmission technologies added by AddPac’s professionals has new technologies of voice and IP telephony. AP VP500 has improved features such as support for high-definition 720P, high-quality 12 "LCD screen. AP VP500 supports data rates from 64 Kbit/s to several Mbit/s. Additionally AP VP500 offers superior video quality thanks to bandwidth control function that allows you to confidently accept high quality video at the restricted speed limits.
When working with the video signal in MPEG-4 format AP VP500 supports image with maximum VGA resolution of 640 × 480 pixels and runs at 30 frames per second. AP VP500 has a high screen resolution of 720p (1280 × 720). This HD screen without problems can play VGA video from any source and display it without lowering the quality. High-tech architecture RISC CPU and DSP of AP VP500 is fully programmable, allowing continuously developing and adding new features. Replacing the software is easy, and automatic updates facilitate the procedure.
Additional services of AP VP500 can provide most of the necessary functions. AP VP500 supports a variety of services, such as address book, recent calls, Caller ID (CID), and others. AP VP500 allows routing, NAT / PAT, DHCP protocols and ensures quality of service (QoS). AP VP500 supports the H.323 and SIP protocols. The rear panel of AP VP500 has a USB port for USB flash memory, hard drive, keyboard, or mouse.

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SDP Protocols Are Used To Transmit Media Session Information

In 1998, the Internet Engineering Task Force (IETF) published the specification for a Session Description Protocol or SDP as a format that describes parameters for streaming media. The original IETF Proposed Standard was updated in 2006 as RFC 4566. Although the SDP was created as a feature of Session Announcement Protocol (SAP), it can be used with Real-time Transport Protocol, Real-time Streaming Protocol (RTSP), and Session Initiation Protocol, as well as a standalone protocol. Parameter negotiation, session announcement and session invitation are included in the descriptive sessions from the SDP protocol. Rather than transmit data like other types of protocols, an SDP negotiates between media type endpoints, format and properties involved. A session begins when a connection is established, and the session is terminated only after every endpoint is no longer participating.

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