Yealink SIP-T2 SERIES Administrator's Manual page 523

Details of Configuration Parameters:
Parameter
features.uplink_bandwidth
Description:
Specifies the maximum transmitting bandwidth for the IP phone.
0-Auto
256-256kb/s
384-384kb/s
512-512kb/s
640-640kb/s
768-768kb/s
1024-1024kb/s
1280-1280kb/s
1500-1500kb/s
2000-2000kb/s
3000-3000kb/s
4000-4000kb/s
If it is set to 0 (Auto), the IP phone will select the appropriate transmitting bandwidth
automatically.
Note: It is only applicable to SIP VP-T49G IP phones.
Web User Interface:
Settings->Video->Uplink Bandwidth
Phone User Interface:
Menu->Basic->Video Setting->Uplink Bandwidth
features.downlink_bandwidth
Description:
Specifies the maximum receiving bandwidth for the IP phone.
0-Auto
Phone User Interface
0, 256, 384, 512, 640, 768,
1024, 1280, 1500, 2000, 3000
0, 256, 384, 512, 640, 768,
1024, 1280, 1500, 2000, 3000
Configuring Basic Features
Specify the maximum
transmitting or receiving
bandwidth.
Permitted Values
or 4000
or 4000
Default
0
0
501