Grandstream Networks GXV3175 manual Advanced Settings/Ring Tone

	impair the video due to packet loss.
Video Packet Size	The Default value is 1400, range from 100 to 1400.
	It is recommended to use 600~800 if you have an Outbound Proxy or Media
	Gateway.
Video Rate Control	Frame, TMN8 or GOP. The Default setting is Frame.
	TMN8 is good for bandwidths larger than 384kbps
Video Frame Skipping	Skips bad video frames as they are received
	The Default setting is No.
I-Frame Reference Only	When enabled, all P frames will only have reference to previous I frames.
	This method may improve video quality when the network has heavy packet
	loss. It will have modest increase in bandwidth usage. The Default setting is
	No.
Packetization-Mode	The packetization mode (0 or 1) for the H.264 video packets. The default
	setting is 0.
Redundant P-frame	This setting allows the phone to send redundant P-frames of I frames. When
	an I frame is delayed or has packet loss, the redundant P-frames will be
	used instead. It may make video phone call less prone to errors and thus
	make the video stream more robust towards error propagation, but may
	increase bandwidth usage. The default setting is set to No.
Adaptive MB Intra Refresh	This parameter specifies whether Adaptive MB Intra Refresh is used or not.
	It may protect most important MBs (macro blocks) subjected to packet loss
	and to avoid error propagation. The intra-refresh rate is adapted according
	to the video packet loss rate. It may increase bandwidth usage. The default
	setting is set to No.
Video Packet Loss Rate	Specifies the video packet loss rate for the Adaptive MB Intra Refresh.
	Users can choose from: Less than 5%, Less than 10%, Less than 15%,
	Less than 20%, Less than 25%. The default setting is set to Less than 10%.

Advanced Settings/Ring Tone

Call Progress Tones:

Dial Tone

Ring Back Tone

Busy Tone

Reorder Tone

Confirmation Tone

Call-Waiting Tone

Using these settings, users can configure ring or tone frequencies based on parameters from the local telecom provider. By default, they are set to the North American standard.

Frequencies should be configured with known values to avoid uncomfortable high pitch sounds.

Syntax: f1=val,f2=val[,c=on1/off1[-on2/off2[-on3/off3]]]; (Frequencies are in Hz and cadence on and off are in 10ms)

Grandstream Networks, Inc.	GXV3175 USER MANUAL	Page 41 of 119
	FIRMWARE VERSION 1.0.0.32	Updated : 12/2010