Grandstream Networks BudgeTone-200 ILBC frame size, ILBC payload, Type Silence, Suppression

iLBC frame size	iLBC packet frame size. Default is 20ms. For Asterisk PBX, 30ms might be required.
iLBC payload	Payload type for iLBC. Default value is 97. The valid range is between 96 and 127.
type
Silence	This controls the silence suppression/VAD feature of the audio codec G.723 and G.729.
Suppression	If set to “Yes”, when silence is detected, a small quantity of VAD packets (instead of
	audio packets) will be sent during the period of no talking. If set to “No”, this feature is
	disabled.
Voice Frames	This field contains the number of voice frames to be transmitted in a single Ethernet
per TX	packet (be advised the IS limit is based on the maximum size of Ethernet packet is 1500
	byte (or 120kbps)).
	When setting this value, be aware of the requested packet time (ptime, used in SDP
	message) is a result of configuring this parameter. This parameter is associated with the
	first codec in the above codec Preference List or the actual used payload type
	negotiated between the 2 conversation parties at run time. e.g., if the first codec is
	configured as G.723 and the “Voice Frames per TX” is set to 2, then the “ptime” value in
	the SDP message of an INVITE request will be 60ms because each G.723 voice frame
	contains 30ms of audio. Similarly, if this field is set to 2 and the first codec is G.729 or
	G.711 or G.726, then the “ptime” value in the SDP message of an INVITE request will be
	20ms.
	If the configured voice frames per TX exceeds the maximum allowed value, the IP phone
	will use and save the maximum allowed value for the corresponding first codec choice.
	The maximum value for PCM is 10 (x10ms) frames; for G.726, it is 20 (x10ms) frames;
	for G.723, it is 32 (x30ms) frames; for G.729/G.728, 64 (x10ms) and 64 (x2.5ms) frames
	respectively.
	Please be careful when editing these parameters. Adjusting these parameters will also
	change the dynamic jitter buffer. The BT200 has a patent dynamic jitter buffer handling
	algorithm. The jitter buffer range is 20 ~ 200 ms.
	Grandstream recommends using the default settings provided. Grandstream does not
	recommend adjusting these parameters if you are an average user. Incorrect settings
	will affect the voice quality.		Please refer to the Codec FAQ at
	http://www.grandstream.com/faqscodec.html for more technical detail.
Layer 3 QoS	This field defines the layer 3 QoS parameter. It is the value used for IP Precedence or
	Diff-Serv or MPLS. Default value is 48.
Layer 2 QoS	This contains the value used for layer 2 VLAN tag. Default setting is blank.
No Key Entry	Default is 4 seconds.
Timeout
Use # as	This parameter allows users to configure the “#” key as the “Send” (or “Dial”) key. If set
Dial Key	to “Yes”, the “#” key will immediately send the call.			In this case, this key is essentially
	equivalent to the “Dial” key. If set to “No”, the “#” key is included as part of the dial string.
Local RTP port	This parameter defines the local RTP-RTCP port pair used to listen and transmit. It is the
	base RTP port for channel 0. When configured, channel 0 will use this port _value for
	RTP and the port_value+1 for its RTCP; channel 1 will use port_value+2 for RTP and
	port_value+3 for its RTCP. The default value is 5004.
Grandstream Networks, Inc.		BT200 User Manual		Page 24 of 33
		Firmware 1.1.5.15		Last Updated: 01/2008