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Grandstream Networks, Inc. GXV300x User Manual Page 36 of 54
Firmware 1.2.3.7 Updated: 12/2010
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 buffere
d 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
S
ETTINGS
The FXO tab would only appear for GXV3005.
T
ABLE
14:
FXO
C
ONFIGURATION
P
AGE
D
EFINITIONS
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.