Cisco 7925G Unified Wireless IP Phone
Cisco 7925G is a convenient wireless IP phones supporting IEEE 802.11a/b/g standards (7925G ETSI/CME UL Reqd; Battery/PS Not Included)
This model ensures complete voice communication in compatibility with Cisco Unified CallManager and Cisco Aironet Wi-Fi (IEEE802.11a/b/g/ access points.
While being a part of Cisco Unified Communications Wireless, cordless Cisco 7925G IP phone transparently implements such intellectual services as security, mobility, quality of service (QoS) and network management within Cisco networks.
Cisco 7925G is water and dust resistant. Additionally it is more wear resistant than other models and can be used in aggressive environments. Its new functionality includes support for Bluetooth 2.0
Technical Characteristics:
Large 2inch color display with a resolution of 176x220 pixels
IEEE 802.11a/b/g on 2.4 GHz or 5 GHz frequency.
Applications, supporting XML data, such as text and image message exchange and simplex connection applications. Imitating radio transmitters
Bluetooth 2.0 with the support of Enhanced Data Rate (EDR)
Military body, corresponding to military standard of shock resistance (MIL-STD 810F), water and dust resistance according to IP54 standard
Extended time of the battery (up to 240 hours in waiting mode and 13 hour active mode)
Support for broadband voice communication for high quality voice transfer
Rechargeable battery [CP-BATT-7925G-STD]: Li-ion 3.7V, 1100mAh, 4.07Wh
AC adapter and power block are not included with this phone
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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