Cisco 7931G - Unified IP Phone VoIP Administration Manual - Page 3

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Cisco 7931G - Unified IP Phone VoIP Administration Manual
Chapter 2
Preparing to Install the Cisco Unified IP Phone on Your Network
Note
Understanding How the Cisco Unified IP Phone Interacts with the
VLAN
Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 6.1
OL-14587-01
Understanding Interactions with Other Cisco Unified IP Communications Products
For information about configuring Cisco Unified Communications Manager to
work with the IP devices that described in this chapter, refer to Cisco
Unified Communications Manager Administration Guide, Cisco Unified
Communications Manager System Guide, and to Cisco Unified Communications
Manager Security Guide.
For an overview of security functionality for the Cisco Unified IP Phone, see the
"Understanding Security Features for Cisco Unified IP Phones" section on
page
1-14.
If the Cisco Unified IP Phone model that you want to configure does not appear
in the Phone Type drop-down list in Cisco Unified Communications Manager
Administration, go to the following URL and install the latest support patch for
your version of Cisco Unified Communications Manager:
http://www.cisco.com/kobayashi/sw-center/sw-voice.shtml
Related Topic
Telephony Features Available for the Phone, page 5-2
•
The Cisco Unified IP Phone 7931G has an internal Ethernet switch, enabling
forwarding of packets to the phone, and to the access port and the network port on
the back of the phone.
If a computer is connected to the access port, the computer and the phone share
the same physical link to the switch and share the same port on the switch. This
shared physical link has the following implications for the VLAN configuration
on the network:
The current VLANs might be configured on an IP subnet basis. However,
•
additional IP address might not be available to assign the phone to the same
subnet as other devices connect to the same port.
Data traffic present on the data/native VLAN may reduce the quality of
•
Voice-over-IP traffic.
Network security may indicate a need to isolate the VLAN voice traffic from
•
the VLAN data traffic.
2-3