Cisco UC Phone 9971

IP videophone Cisco Unified IP Phone 9971 is a leading multifunctional and multimedia user device, ensuring high quality of voice transfer, video and support to various applications. The device has a built in switch with two Ethernet 10/100/100M/bit ports for connection to LAN and PC, additionally it has a built in 802.11 a/b/g/ module, which ensures additional types of connection. Cisco 9971 supports the most used voice and video codec, thus, providing the high quality of communication. It has a touch sensitive high resolution display, good design and convenient user interface, simplifying the interactions with this phone.

The phone has wide range of accessories, including wireless headsets, Cisco Unified Video Camera, allowing increasing the effectiveness of IP videophone Cisco 9971. Videophone Cisco 9971 supports XML and Java MIDIet-based applications. This device is compatible with the latest version of Cisco Unified Communications Manager.

Technical characteristics of IP phone 9971:

Headset radius up to 8m 2 USB for Cisco Unified Video Camera or wireless headset LLDP-PoE, CDP , IEEE Power over Ethernet 802.3af and 802.3at Local power supply with help of CP-PWR-CUBE-4 or CP-PWR-INJ power injector 5inch color display HD sound 2 x RJ-45 10/100/1000 BASE-T Ethernet 802.11a/b/g Wi-Fi 1 x RJ – 9 Support up to 6 phone lines Cisco Discovery Protocol IEEE 802.1 p/q H.264/AVC Support: G.711a, G.711, G.729a, G.729b и G.729ab, iLBC and iSAC audio codecs

Providers in database: 6433

RTP Delivers Multimedia Data In Real Time

A Real-time Transport Protocol (RTP) is a protocol standard defined by the Internet Engineering Task Force (IETF) that outlines a management system for programs using real-time transmission of data through mutlicast or unicast network services in multimedia situations. Originally designed by the IETF for videoconferencing for multiple participants, the protocol is largely used in Voice over Internet Protocol applications. Despite its name, the protocol cannot guarantee real-time delivery of data, however, the RTP does compensate for jitters and can detect when data arrives out of sequence, both issues being popular in VoIP communication. In IP telephony, RTP works with a signaling protocol, such as SIP or H.323, in order to set up connections in a network.

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