CHAPTER27 Configuring DTMF and Dialing
Mediant 1000 Gateway & E-SBC | User's Manual
27 Configuring DTMF and Dialing
This section describes configuration of dual- tone multi-frequency (DTMF) and dialing for the
Gateway application.
Dialing Plan Features
This section describes various dialing plan features.
Digit Mapping
The device collects digits until a match is found in the user-defined digit pattern (e.g., for closed
numbering schemes). The device stops collecting digits and starts sending the digits (collected
number) upon any of the following scenarios:
â– Maximum number of digits is received. You can define (using the MaxDigits parameter) the
maximum number of collected destination (dialed) number digits that can be received from the
Tel side by the device. When the number of collected digits reaches the maximum (or a digit
map pattern is matched), the device uses these digits for the called destination number.
â– Inter-digit timeout expires (e.g., for open numbering schemes). This is defined using the
TimeBetweenDigits parameter. This is the time that the device waits between each received
digit. When this inter-digit timeout expires, the device uses the collected digits to dial the called
destination number.
â– (Analog Interfaces) The phone's pound (#) key is pressed.
â– Digit string (i.e., dialed number) matches one of the patterns defined in the digit map.
Digit map (pattern) rules are defined using the DigitMapping parameter. The digit map pattern can
contain up to 52 options (rules), each separated by a vertical bar ("|"). The maximum length of the
entire digit pattern is 152 characters. The available notations are described in the table below:
Table 27-1: Digit Map Pattern Notations
Notation Description
[n-m] Range of numbers (not letters).
. (single dot) Repeat digits until next notation (e.g., T).
x Any single digit.
Note: This notation does not apply to some scenarios when using the star (*) or
hash (#) key. For example, the key sequence of ** must be presented in the dial
plan as *x.s (instead of xx).
T Dial timeout (configured by the TimeBetweenDigits parameter).
S Short timer (configured by the TimeBetweenDigits parameter; default is two
seconds) that can be used when a specific rule is defined after a more general rule.
For example, if the digit map is 99|998, then the digit collection is terminated after
the first two 9 digits are received. Therefore, the second rule of 998 can never be
matched. But when the digit map is 99s|998, then after dialing the first two 9 digits,
the device waits another two seconds within which the caller can enter the digit 8.
Below is an example of a digit map pattern containing eight rules:
DigitMapping = 11xS|00[1-7]xxx|8xxxxxxx|#xxxxxxx|*xx|91xxxxxxxxxx|9011x|xx.T
- 643 -
To Next Page
Loading...
Need help?
General
