Hanlong Technology Co., Ltd Unicorn 600x User Manual Page 30 of 37
Firmware
1.0.0.29 Last Updated 8/2010
“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 vocoder
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 Unicorn 600x will use and save the
maximum allowed value for the corresponding first vocoder
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.
G723 Rate
This defines the encoding rate for G723 vocoder. By default,
6.3kbps rate is chosen.
VAD
Default is
No
. VAD allows detecting the absence of audio
and conserve bandwidth by preventing the transmission of
"silent packets" over the network.
Symmetric RTP
Default is
No
. When set to Yes the device will change the
destination to send RTP packets to the source IP address
and port of the inbound RTP packet last received by the
device.
FAX Mode
Default is
T.30
(Fax Pass-Through), or T.38 (Auto Detect)
FoIP
Fax Tone Detection
Mode
Default is
Callee
. This decides whether Caller or Callee
sends out the re INVITE for T.38 or Fax Pass Through.
Jitter Buffer Type
Select either Fixed or Adaptive based on network
conditions.
Jitter Buffer Length
Select Low, Medium or High based on network conditions.
Distinct Ring Tone
Caller ID must be configured. Select a Distinctive Ring Tone 1
through 3 for a particular Caller ID. The device will ONLY use
selected ring tones for particular Caller IDs. For all other calls,
the device will use System Ring Tone. When selected and no
Caller ID is configured, the selected ring tone will be used for
all incoming calls.
.
Use Bell-style 3-way
Conference
Conference mode, default option is No. If set to yes, the feature
code for coference *23 would be disabled.
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