Cisco 6961 Unified IP Phone

Cisco 6961 IP phone model is the final in its family line is mostly used by management and clerks, the model support voice and video communications (Cisco UC Phone 6961, Standard Handset)

Cisco 6961 supports up to 12 lines, the ability to insert paper signatures for IP phone lines, a full duplex speakerphone. Cisco 6961 model supports call holding on each line, has fixed HOLD, TRANSFER, CONFERENCE keys. Also it has tricolor indicators of line status, functional keys for more convenient use of IP phone features.

Technical Characteristics:

Anti-glare monochrome dispaly with white backlight, with the 396 x 81 pixel resolution 12 line keys with tricolor indication of line status 2 x RJ-45 10/100 BASE-T Codec support: G.711, G.711a, G.729a, G.729b, G.729ab and iLBC Possibility of connecting VT Camera and Cisco Unified Video Advantage software (has to be purchased separately) for making phone calls from PC. Power supply voltage 48 V DC, supplied via optional power supply block CP-PWR-CUBE-3 “Deep Sleep” energy saving mode, reducing the energy consumption by 50% during of work hours. IEEE 802.3af PoE (class 2)

Providers in database: 6433

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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