Grandstream Networks GXV300X The FXO tab would only appear for GXV3005, Fxo Settings, Page 36 of

Jitter Delay	Select desired Jitter Buffer Delay. Default is Medium. It is using 100, 200 and 400ms to
	match the setting of low, medium and high for audio. The video always buffered and played
	in synchronize with audio.
	Grandstream recommends “High” for a poor network environment.
Enable Video	Yes: video is enabled for all calls. This is the default value.
	No, but allow in-call enabling :
	Receiving call:
	There are two ways to pick up incoming video call.
	-Pressing SPEAKER or picking up handset will answer the call as VOICE ONLY call.
	GXV300x can still send out video request after the call is established by pressing MIR-
	ROR button.
	-Pressing MIRROR button will answer the call as VOICE & VIDEO call.
	Making call:
	-Picking up handset or pressing SPEAKER
	-Pressing MIRROR button to toggle between VOICE ONLY and VOICE & VIDEO
	No: video is disabled.
H.264 payload type
	Enter a desired value (96-127) for dynamic RTP payload type of H.264 codec.
	Default is 99.
H.263+ payload type
	Enter a desired value (96-127) for payload type of H.263+ codec. Default is 103
H.263 Default Resolution
	Default is CIF.
Enable RFC5168 Support	Default is No.
	If it is set to Yes, phone will send an SIP INFO asking for update of I-frame.
SRTP Mode
	Enable SRTP mode based on selection. Default is Disabled.
Special Feature
	Default is Standard.
	Choose the selection to meet special requirements from different Soft Switch vendors (like
	Nortel, Broadsoft, Sonus, etc)

FXO SETTINGS

The FXO tab would only appear for GXV3005.

TABLE 14: FXO CONFIGURATION PAGE DEFINITIONS

Current Disconnect

This is a preconfigured value of duration for a line power drop used by specific service pro- viders. For example, for a configured value of 500ms the device will ignore any random voltage drops on the line if duration of such drop is less than 500ms and the call will NOT be considered as terminated. This is useful to prevent unnecessary call drops in some low quality PSTN lines.

Enable Tone Disconnect

Default is Yes. If set to Yes, busy tone is used as disconnect signal.

Grandstream Networks, Inc.	GXV300x User Manual	Page 36 of 54
	Firmware 1.2.3.7	Updated: 12/2010