Cisco 7921G Unified Wireless IP Phone
Cisco 7921G is a wireless IP phone bases on the Wi-Fi (ETSI; CCM/CCME UL Reqd;Battery/PS Not Included) data transfer technology.
This model of the phone presents itself as a convenient in use wireless IP phone with IEEE 802.11a/b/g support, which ensures complete voice communication in compatibility with Cisco Unified CallManager and Cisco Aeronet Wi-FI (IEEE 802.11 a/b/g) access points. This phone has color TFT display with 176x220 pixel resolution and a built in speaker phone.
Technical characteristics:
2inch color LCD display with 176x220 pixel resolution
Network standards: IEEE 802.11a, IEEE 802.11b on IEEE 802.11g on 2,4Ghz or 5Ghz frequency
2 programmable soft keys providing access to applications and additional features of the phone
Supported Audio Codec: G.711a, G.711u, G.729a, G.729ab, G.722
Support for XML applications
Battery: 100 hours waiting mode or 12 hours talking mode.
Protocols: DHCP, TFTP, DNS
AC adapter and power block are not included with this phone
Call
Origination is the collecting of the call started by a calling party on a PSTN,
and handing off the call to a VoIP endpoint or to other exchange phone company
for completion to a called party
Call
Termination is a handing off or routing of calls from one Telephone Company to
another.
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