Nexo FXO-128o, User Manual

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4 Configurations on Web Interface
DNS Cache Whether to enable DNS cache
Domain Re-resolution Interval The time of domain resolution interval
When there is an echo during a call, the dsp can eliminate the
Echo Cancel Tail echo. When the echo cancellation time is longer than the echo
delay, the echo can be eliminated. The default is 128
milliseconds.
Digit map is used for number dialing of calls through FXO ports of the FXO GW device.
Table 4.10.4-3 Explanation of Parameters for Digit Map
Digit 0-9
Supported
T Timer
Objects
DTMF A digit, a timer, or one of the symbols of
A, B, C, D, #, or *
Range [ ] One or more DTMF symbols enclosed in the [], but
only one DTMF symbol can be selected
Range () One or more expressions enclosed the
(), but only one can be selected
Separator | Separate expressions or DTMF symbols.
Subrange - Two digits separated by hyphen (-) which matches any
digit between and including the two digits.
Wildcard x Matches any digit of 0 to 9
Modifiers . Matches 0 or more times of the preceding element
Modifiers ? Matches 0 or 1 times of the preceding element
Gateway-128o User Manual 46