Welltech WG2504 FXS V.4.02 - Manual (Page 41)

41
5-2 Audio
The setting page includes the device related audio settings.
Figure 5-2 Audio setting
 RFC 2833 Payload Type: 96 or 101. It is recommended to use 101.
 DTMF Send On Time(msec): When generate DTMF, the DTMF on
time will be send (default value is 70 ms)
 DTMF Send Off Time(msec): When generate DTMF, the DTMF off
time will be send (default value is 70 ms)
 DTMF Detect Min on Time (msec): The minimum DTMF on time will
be processed as a regular DTMF event. Smaller than it will be ignored.
The default value is 60ms.
 DTMF Detect Min off Time (msec): The minimum DTMF off time for
the same DTMF value. Smaller than it and the new DTMF digit is the
same as previous one will be handled as 1 digit only.
 DTMF Relay Volume: The DTMF relay volume
 T.38 Fax Volume: The T.38 fax relay volume
 T.38 Redundant Depth: The T.38 redundant packet depth. It could 0
(no redundant), 1 or 2. It is recommended to set to 2.
 T.38 ECM: The t.38 error correction mode. Default value is ON.
 Min Jitter Buffer (msec): The minimum delay time of Jitter buffer.
 Max Jitter Buffer (msec): The Maximum delay time of Jitter buffer.
The maximum is “300ms”
 Max Echo Tail Length (G.168): Enable the echo cancellation feature.
The default setting is “128ms”.
 Jitter Opt. Factor: Jitter buffer dynamic factor for optimize. Please
set to 7 unless under Welltech’s instruction to change.
 Impedance: selected analog phone’s impedance. (for FXS port use)