Cisco 7800 Series Administration Manual page 110

Telephony Features for the Cisco IP Phone
Feature
Intercom
IPv6-only Support
Jitter Buffer
Join
Join Across Lines
Line Display Enhancement
Line Status for Call Lists
Cisco IP Phone 7800 Series Administration Guide for Cisco Unified Communications Manager
96
Description and More Information
Allows users to place and receive intercom calls using programmable phone buttons. You
can configure intercom line buttons to:
• Directly dial a specific intercom extension.
• Initiate an intercom call and then prompt the user to enter a valid intercom number.
If your user logs into the same phone on a daily basis using their Cisco Extension
Note
Mobility profile, assign the phone button template that contains intercom
information to their profile, and assign the phone as the default intercom device
for the intercom line.
The Cisco IP Phone 7811 does not support this feature.
IPv6-only support is provided in standalone or in configuration with IPv4-only.
See Configure Network Settings, on page
For more details about IPv6 deployment, see the
Collaboration Systems Release
The Jitter Buffer feature handles jitter from 10 milliseconds (ms) to 1000 ms for both audio
and video streams.
Allows users to combine two calls that are on one line to create a conference call and remain
on the call.
Because Cisco IP Phone 7811 has only one line, the phone uses the Calls softkey
Note
to join two calls in the same line.
See Join and Direct Transfer Policy,
Allows users to combine calls that are on multiple phone lines to create a conference call.
Some JTAPI/TAPI applications are not compatible with the Join and Direct Transfer feature
implementation on the Cisco IP Phone and you may need to configure the Join and Direct
Transfer Policy to disable join and direct transfer on the same line or possibly across lines.
Because Cisco IP Phone 7811 has only one line, it does not support this feature.
Note
See Join and Direct Transfer Policy,
Improves the call display by removing the central dividing line when it is not required. This
feature applies to the Cisco IP Phone 7841 only.
Allows the user to see the Line Status availability status of monitored line numbers in the Call
History list. The Line Status states are
• Unknown
• Idle
• Busy
• DND
See Enable BLF for Call Lists, on page
40.
IPv6 Deployment Guide for Cisco
12.0.
Product Specific Configuration, on page 106
Product Specific Configuration, on page 106
131.
Cisco IP Phone Administration
.
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