If it is set to “AES 128&256 bit”, the phone system 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 “AES128&256 bit”.
Enable SRTP Key Lifetime
Defines the SRTP key lifetime. When this option is set to be enabled, during the SRTP call, the SRTP
key will be valid within 231 SIP packets, and phone will renew the SRTP key after this limitation.
Default is “Yes”.
RTCP Destination Configures a remote server URI where the RTCP messages will be sent to during an active call.
Symmetric RTP
Configures if the phone system enables the symmetric RTP mechanism.
If it is set to “Yes”, the phone system will use the same socket/port for sending and receiving the RTP
messages. The default setting is “No”.
RTP IP Filter
Receives the RTP packets from the specified IP address and Port by communication protocol. If it is
set to “IP Only”, the phone only receives the RTP packets from the specified IP address based on the
communication protocol; If it is set to “IP and Port”, the phone will receive the RTP packets from the
specified IP address with the specified port based on the communication protocol. The default setting
is “Disable”.
RTP Timeout Timer (s)
Disconnects the call automatically when there is no RTP stream for a specific timeout. Default is 30
seconds.
VQ RTCP-XR Collector Name
Configures the host name of the RTCP server that accepts voice quality reports contained in SIP
PUBLISH messages.
VQ RTCP-XR Collector Address
Configures IP address of the RTCP server that accepts voice quality reports contained in SIP
PUBLISH messages.
VQ RTCP-XR Collector Port
Configures the port of the RTCP server that accepts voice quality reports contained in SIP PUBLISH
messages.
Call Features
Enable Video Call
Configures the video call function for this account. If set to “Default”, it will be configured
according to global video call function.
Start Video Automatically
Permits the phone system to enable the video feature automatically when it makes an outbound
call.
If set to “Yes”, the video codec attributes will be included in the SIP INVITE message. Or the
attributes will not be included.
The default setting is “Yes”.
Remote Video Request
Configures the preference to handle video request from the remote party during an audio call.
The default is “Prompt”.
“Prompt”: A message will be prompted if a video request is received. Users can select “Yes” to
establish video or “No” to reject the request.
“Accept”: Video request will be accepted automatically, and video will be established.
“Deny”: Video request will be rejected automatically.
Video Layout Defines whether to enter full screen when incoming video call is answered.
“Fullscreen“: GXV3350 will show the remote video feed in full screen.
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