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Cisco Unified SIP Phone 3911 Administration Guide for Cisco Unified Communications Manager
OL-14029-01
C H A P T E R
1
An Overview of the
Cisco Unified IP Phone
The Cisco Unified SIP Phone 3911 provides voice communication over an
Internet Protocol (IP) network. The IP Phone functions like a digital business
telephone, allowing you to place and receive phone calls and to access features
such as mute, hold, transfer, speed dial, and call forward. The IP Phone also
supports security features that include image and digest authentication.
The Cisco Unified SIP Phone 3911 is interoperable with RFC-3261, RFC-3264,
RFC-3264, RFC-3311, RFC 3515, and RFC-3891.
An IP Phone, like other network devices, must be configured and managed. These
phones support G.711a, G.711u, G.729(decode only), and G.729a. This manual
describes the Cisco Unified SIP Phone 3911.
This chapter includes the following topics:
•
Understanding the Cisco Unified SIP Phone 3911, page 1-2
•
What Networking Protocols Are Used?, page 1-3
•
What Features are Supported on the Cisco Unified SIP Phone 3911?, page 1-7
•
Understanding Security Features for Cisco Unified SIP Phone 3911, page 1-9
•
Overview of Configuring and Installing Cisco Unified IP Phones, page 1-10
Caution
Using a cell, mobile, or GSM phone, or two-way radio in close proximity to a
Cisco Unified IP Phone might cause interference. For more information, refer to
the manufacturer's documentation of the interfering device.
Summary of Contents for 3911
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