User manual

AT800 Series User Manual
ATCOM TECHNOLOGY CO., LIMITED www.atcom.cn
transmit it to initiate a call, or else reject it as invalid. The terminating events are:
• No candidate sequences remain: the number is rejected.
• Only one candidate sequence remains, and it has been matched completely: the number is accepted
and transmitted after any transformations indicated by the dial plan, unless the sequence is barred by
the dial plan (barring is discussed later), in which case the number is rejected.
• A timeout occurs: the digit sequence is accepted and transmitted as dialed if incomplete, or
transformed as per the dial plan if complete.
• 
if incomplete, or transformed as per the dial plan if complete.
The timeout duration depends on the matching state. 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:

  

--
Ranges can be combined with other keys: e.g. [235-.
Element repetition:


Subsequence Substitution:
A subsequence of keys (possibly empty) can be automatically replaced with a different subsequence
--
“
Intersequence Tones:
   


Number Barring:
A sequenc                 
“  
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: