Cisco cp-6921

I have heard a lot about the Cisco Unified IP Phone 6921 and want to know in details about this phone. Can you please provide me some details about this phone along with the features of Cisco Unified IP Phone 6921 also tell me security feature of this phone?

[Kiran Chandar]

The Cisco Unified IP Phone 6921 is an innovative endpoint that delivers affordable, business-grade voice communications and support for video communications services to customers worldwide.

The Cisco Unified IP Phone 6921 supports two lines and offers a full-duplex speakerphone for a more productive, more flexible, and easier-to-use endpoint experience.

Features of this product:

Lighted Hold key
Lighted Menu key
Lighted message waiting indicator
Graphical display
Deep-Sleep option
Co-branding
Speakerphone
Headset support
Four softkey buttons and a scroll toggle bar
Network features
Ethernet switch
Volume control
Dual-position foot stand
Multiple ring tones
American Disabilities Act (ADA) features
Signaling protocol support
Codec support
Voice quality
Video Communications

Security features

Certificates
Image authentication
Device authentication
File authentication
Signaling authentication
Media encryption using Secure Real-Time Transfer Protocol (SRTP)
Signaling encryption using Transport Layer Security (TLS) Protocol
Encrypted configuration files