BG9008W User Manual
Page 91 of 133
Figure 3-154
DSP Parameters
The following items are displayed on this screen:
►
Echo Cancellation:
Enable or disable echo cancellation.
►
Silence Detection/Suppression:
Enable or disable silence detection and silence suppression.
►
Input Gain:
Configure the input gain value.
►
Output Gain:
Configure the input gain value
►
Delay Level:
Choose the delay level, five levels are provided:
Minimum,
Smaller, Moderate, Larger, Maximum
.
►
DTMF Transfer Model:
Select DTMF transmission mode
: In-Band, INFO, RFC2833
.
►
RFC2833 Load Type:
If RFC2833 is selected, specify payload type of RFC2833.
►
T38 Max FAX Rate:
Select the maximum rate, when using T38 fax mode:
Unlimited,
2400bps, 4800bps, 7200bps, 9600bps, 12000bps, 14400bps
.
►
T38 Signaling Redundancy:
Configure the redundancy of T38 signal.
►
T38 Data Redundancy:
Configure the redundancy of T38 data.
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
Table 3-1
Digitmap
Characters
Character Description
0
～
9
Indicates specific digits in a telephone number expression.
X
Wildcard, matches any digit, excluding “#” and “*”.
* Digit
star
# Digit
pound
