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The following items are displayed on this screen:
►
Echo Cancellation:
►
Silence Detection/Suppression:
►
Input Gain:
►
Output Gain:
►
Delay Level:
►
DTMF Transfer Model:
►
RFC2833 Load Type:
►
T38 Max FAX Rate:
►
T38 Signaling Redundancy:
►
T38 Data Redundancy:
3.7.11.3
Digitmap
The destination number will be sent all in one time for SIP application, digitmap is used to determine
exactly when there are enough digits entered from the user to place a call. If the number length of suited
route item is fixed, the number will be sent when specified number of digits is received; the call will be
disconnected when inter-digit timeout expires. If the number length of suited route item is indefinite,
there are 3 ways to determine whether the digits is enough, press pound(#) key, timeout expires or
digitmap comparing. If digits dialed partly matching with digitmap patterns, continue waiting of number
receiving. If they match, send the number immediately. If not, send the number immediately too, in order
to play the prompts.
3.7.11.3.1 Digitmap Characters
Character
0～9
X
*
#
BG9008W User Manual
Figure 3-154 DSP Parameters
Enable or disable echo cancellation.
Enable or disable silence detection and silence suppression.
Configure the input gain value.
Configure the input gain value
Choose the delay level, five levels are provided: Minimum,
Smaller, Moderate, Larger, Maximum.
Select DTMF transmission mode: In-Band, INFO, RFC2833.
If RFC2833 is selected, specify payload type of RFC2833.
Select the maximum rate, when using T38 fax mode: Unlimited,
2400bps, 4800bps, 7200bps, 9600bps, 12000bps, 14400bps.
Configure the redundancy of T38 signal.
Configure the redundancy of T38 data.
Digitmap Characters
Table 3-1
Indicates specific digits in a telephone number expression.
Wildcard, matches any digit, excluding "#" and "*".
Digit star
Digit pound
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