PLANET VGW-400FO - Manual (Page 48)

4-Port SIP Internet Telephony Gateway
VGW-400 Series
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ignored. The default value is 60ms.
DTMF Detect Min Off
Time (msec)
The minimum DTMF OFF time for the same DTMF value. A
smaller OFF time less than this and the new DTMF digit is the
same as previous one will be handled as 1 digit only (the same
digit but not a new digit).
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 be 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.
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 Planet’s instruction to change.
Impedance Selected analog phone’s impedance. (for FXS port use)