Bandwidth Requirement for Video Call

Hi,
I am having Cisco 9951 phones in my all location now we want to configure Video call between two location (Head office to SRST locaiton). Please help me how much bandwidth is require to make video calls.
Also, what all configuration is require for the same.
Regards,
Shambhu

The default is inter-region max video call bit rate is 384K, close to one video call.
The default Interregion max video call bit rate is 384K.
The bandwidth would depend on the resolution being used. The recommended bandwidth for resolutions are as follow:
VGA 360p@30fps: 768 - 2000kbps
VGA 360p@15fps: 448 - 767kps
CIF@30fps: 320 - 447kbps
CIF@15fps: 256 - 319kbps
QCIF@30fps: 128kbps – 255kbps
QCIF@15fps: 64 - 127kbps
And 9971 IP Phone supports below formats:
SQCIF (128 x 96 pixels)
QCIF (176 x 144 pixels)
QVGA (320 x 240 pixels)
SIF (352 x 240 pixels)
CIF (352 x 288 pixels)
VGA (640 x 480 pixels)

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