3Com SuperStack 3 NBX, Administrator'S Manual

Page: 131 / 496

Sample Solutions Using Dial Plan Configuration File Commands 131
PreTranslatorOperation Create 1 1 1 stripLead 1
Explanation: For pretranslator table 1, PreTranslatorEntry 1, create the
first PreTranslatorOperation. This performs a stripLead operation,
removing a single leading digit from the incoming number.
Customer Requirement 2. Assume that the telephone company
passes 10-digit numbers to the NBX system for each incoming telephone
call (for example, numbers in the range 4567-89-3000 through
4567-89-3500). If the system uses 4-digit extensions in the range 2000
through 2500, you can pass an incoming 10-digit number such as
4567-89-3210 to extension 2210 by using two pretranslation operations.
The first operation performs a
stripLead operation to remove the first 7
digits, leaving 210. The second would perform a prepend to add the digit
2 to the front of the number, creating 2210, which matches an extension
within the extension range.
These entries in a dial plan configuration file would accomplish the
pretranslation:
PreTranslator Create 1 10-to-3-digit T1 DID/DDI Pretranslator
Explanation: Create pretranslator table 1, called “10-to-3-digit T1
DID/DDI Pretranslator.”
PreTranslatorEntry Create 1 1 4567893
Explanation: Creates the first entry in pretranslator table 1. This entry
looks for sequence of digits 4567893.
This example assumes that all numbers begin with the same 7 digits
(4567-89-3) and differ only in the last 3 digits. If this assumption is
incorrect, you can add
PreTranslatorEntry Create lines to describe all of
the possible variations.
PreTranslatorOperation Create 1 1 1 stripLead 7
PreTranslatorOperation Create 1 1 2 prepend 2
Explanation: For PreTranslator table 1, PreTranslatorEntry 1, create the
first PreTranslatorOperation. This performs a stripLead operation,
removing the first seven leading digits from the incoming number.
Then create operation 2, which prepends the digit 2 to the remaining
3-digit number. The resulting 4-digit number matches one of the internal
extensions in the system.