Settings/Sip/Call - Grandstream Networks GVC3200 Administration Manual

Defines the transport protocol used for BFCP. Users can choose from Auto/UDP/TCP.
BFCP Transport
The default setting is "UDP". If "Auto" is configured, the device will automatically
Protocol
switch between "UDP" and "TCP".
It is used to set if the device will enable the SRTP (Secured RTP) mode. It can be
selected from dropdown list:
 Disable
 Enabled but not forced
SRTP Mode
 Enabled and forced
SRTP uses encryption and authentication to minimize the risk of denial of service.
(DoS). If the server allows to use both RTP and SRTP, it should be configured as
"Enabled but not forced". The default setting is "Enabled But Not Force".
It is to configure all the AES (Advanced Encryption Standard) key size within SRTP.
It can be selected from dropdown list:
 AES 128&256 bit
 AES 128 bit
SRTP Key Length  AES 256 bit
If it is set to "AES 128&256 bit", the device will provide both AES 128 and 256 cipher
suite for SRTP. If set to "AES 128 bit", it only provides 128-bit cipher suite; if set to
"AES 256 bit", it only provides 256-bit cipher suite. The default setting is "AES
128&256 bit".

Settings/SIP/Call

Parameters Descriptions
It is used to set the preference to handle video request from the remote party during
an audio call. It can be selected from the dropdown list.
 "Prompt": A message will be prompted if a video request is received. Users can
Remote Video
Request  "Accept": Video request will be accepted automatically and video will be
 "Deny": Video request will be rejected automatically.
The default setting is "prompt".
select "Yes" to establish video or "No" to reject the request.
established.
GVC3200/3202 Administration Guide
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