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Admin Pass- word
Silence Sup- pression
Voice Frames per TX
Video Frame Rate
Video bit rate (kbps)
Video Packet Size
Video fit to Screen
Enable Video Surveillance
Administrator password. Only administrator can configure the “Advanced Settings” page. Password field is purposely left blank for security reason after clicking update and saved. The maximum password length is 25 characters.
This controls the silence suppression/VAD feature of G723 and G729. If set to “Yes”, when a silence is detected, 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.
This field contains the number of voice frames to be transmitted in a single Ethernet packet (be advised the max. size of Ethernet packet is 1500 byte (or 120k bit) so user should be aware that there IS a limit there). When setting this value, the user should be aware of the requested packet time (ptime, used in SDP message) as a re- sult 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 be- tween the 2 conversation parties at run time.
e.g., if the first codec is configured as G723 and the “Voice Frames per TX” is set to be 2, then the “ptime” value in the SDP message of an INVITE request will be 60ms because each G723 voice frame contains 30ms of audio. Similarly, if this field is set to be 2 and if the first codec chosen is G729 or G711 or G726, 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 co- dec choice. The maximum value for PCM is 10 (x10ms) frames; for G726, it is 20 (x10ms) frames; for G723, it is 32 (x30ms) frames; for G729/G728, 64 (x10ms) and 64 (x2.5ms) frames respectively.
Please be very careful when massage those parameters. By adjust this, user also get jitter buffer changed accordingly.
Incorrect setting will affect voice quality so do not touch the parameter if not under- stand and most of the case the default value will work in GS products.
Please refer to the Codec FAQ in our website for more technical details:
Default value is 15 frames/second. User adjustable based on network condition. In- crease frame rate will increase data significantly.
Default value is 128 kbps. User adjustable based on network environment.
Default value is 1400, range from 100 to 1400
When the received image size is bigger than the LCD resolution (QVGA), the GXV3000 can Scale the image to fit the LCD or Crop it.
Default is No. If configured to YES, the video phone can be turned to an video sur- veillance camera once the phone rebooted.
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