Cisco Unified 7905G, Руководство администратора

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C H A P T E R
1-1
Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
OL-4277-01
1
Overview of the
Cisco IP Phone Models 7905G and
7912G
This chapter describes the hardware and software features of the
Cisco IP Phone models 7905G and 7912G and provides a brief overview of the
Session Initiation Protocol (SIP).
This chapter includes the following sections:
• Hardware Overview, page 1-1
• Software Features, page 1-4
• SIP Overview, page 1-7
Hardware Overview
The Cisco IP Phone models 7905G and 7912G are cost-effective, entry-level,
single-line telephones that operate on IP-based telephony networks. They can
function as desk units or be mounted on a wall. The phones are easily installed by
end-users.
Figure 1-1 shows the main components of the Cisco IP Phone models 7905G and
7912G.