ATCOM AT840 series User Manual page 20

AT8 AT8 AT8 AT84 4 4 4 0 0 0 0 Series Series Series Series User User User User Manual
The timeout duration depends on the matching state. If no candidate sequences are as yet
complete (as dialed), the Interdigit_Long_Timeout applies. If a candidate sequence is complete,
but there exists one or more incomplete candidates, then the Interdigit_Short_Timeout applies.
White space is ignored, and may be used for readability.
Digit Sequence Syntax:
Each digit sequence within the dial plan consists of a series of elements, which are individually
matched to the keys pressed by the user. Elements can be one of the following:
Individual keys '0', '1', '2' . . . '9', '*', '#'.
The letter 'x' matches any one numeric digit ('0' ... '9')
A subset of keys within brackets (allows ranges): '['set ']' (e.g. [389] means '3' or '8' or '9')
Numeric ranges are allowed within the brackets: digit '-'digit (e.g. [2-9] means '2' or '3' or ... or
'9')
Ranges can be combined with other keys: e.g. [235-8*] means '2' or '3' or '5' or '6' or '7' or '8' or
'*'.
Element repetition:
Any element can be repeated zero or more times by appending a period ('.' character) to the
element. Hence, "01." matches "0", "01", "011", "0111" ... etc.
Subsequence Substitution:
A subsequence of keys (possibly empty) can be automatically replaced with a different
subsequence using
transmitted-subsequence '>'. So, for example, "<8:1650>xxxxxxx" would match "85551212"
and transmit "16505551212".
Intersequence Tones:
An "outside line" dial tone can be generated within a sequence by appending a ',' character
between digits. Thus, the sequence "9, 1xxxxxxxxxx" sounds an "outside line" dial tone after the
user presses '9', until the '1' is pressed.
Number Barring:
A sequence can be barred (rejected) by placing a '!' character at the end of the sequence. Thus,
"1900xxxxxxx!" automatically rejects all 900 area code numbers from being dialed.
Interdigit Timer Master Override:
The long and short interdigit timers can be changed in the dial plan (affecting a specific line) by
preceding the entire plan with the following syntax:
Long interdigit timer: 'L' ':' delay-value ','
Short interdigit timer: 'S' ':' delay-value ','
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an angle bracket notation: '<' dialed-subsequence
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