Yealink VC120, Руководство администратора

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Configuring Call Preferences
155
2.
Select the desired value from the pull-down list of
History Record
.
3.
Click
Confirm
to accept the change.
To configure history record via the remote control:
1.
Select
Menu
->
Call Features
.
2.
Check the
History Record
checkbox.
3.
Press the
Save
soft key to accept the change.
Bandwidth
The system automatically detects the available bandwidth for call connection by default. The
VC400/VC120 supports connecting to other devices with different bandwidth. If a device with
lower bandwidth joins a call, the video quality will stay the same or will not reduce a lot. You can
specify the uplink and downlink bandwidths for the system to achieve the best result. Uplink
bandwidth is the max bandwidth of outgoing calls, and downlink bandwidth is the max
bandwidth of incoming calls. The configurable bandwidths on the system are: 256 kb/s, 384 kb/s,
512 kb/s, 640 kb/s, 768 kb/s, 1024 kb/s, 1280 kb/s, 1500 kb/s, 2000 kb/s, 3000 kb/s, 4000 kb/s,
5000 kb/s, 6000 kb/s. You can configure which bandwidth is to be used when in the dialing
screen. The optional maximum bandwidth in dialing screen is the uplink bandwidth.
Note
Bandwidth settings parameters on the system are described below:
Parameter Description Configuration Method
Uplink Bandwidth
Specifies the maximum transmitting
bandwidth for the system.
Default:
Auto
Remote Control
Web User Interface
The actual bandwidth depends on the performance of the remote system, and is affected by the
quality of the communication channel.