Pretranslators For Incoming Calls - 3Com 3C10402B Administrator's Manual

Networked telephony systems
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Pretranslators for
Incoming Calls
4 digits of the total telephone number. Internally, you want to use
extensions 2000 through 2099. You can define a pretranslator to:
Remove (stripLead) the first two digits of the incoming 4-digit
sequence.
Add (prepend) the digits 20 in front of the remaining 2 digits.
See
"Managing Dial Plan Pretranslators"
information about and examples of how to create and manage dial plan
pretranslators.
For incoming calls, pretranslation reformats the dialed number before it is
passed to the Incoming dial plan table (Table ID 2). See
Plan Table"
on
page
and CDR information for incoming VTL calls, see
Pretranslator for VTL Calls"
Incoming Pretranslator Example 1
For an incoming telephone call, if the telephone company passes you
4-digit numbers from 6100 through 6199, the system can use a
pretranslator to remove the first digit; the remaining 3 digits can then be
used as internal extension numbers in a 3-digit dial plan. Define digit
manipulation operations (append, prepend, replace, stripLead, or
stripTrail) within the PreTranslator section of the dial plan configuration
file to indicate which pretranslations you want to perform.
Incoming Pretranslator Example 2
Assume the telephone company passes 10-digit numbers to the system
for each incoming telephone call (for example, numbers in the range
4567-89-3000 to 4567-89-3500). If the system uses 4-digit extensions in
the range 2000 to 2500, you could pass an incoming 10-digit number
such as 4567-89-3210 to extension 2210.
This strategy requires two pretranslation operations: The first operation
performs a stripLead operation to remove the initial 7 digits, leaving 210.
The second operation prepends the number 2 in front of the remaining 3
digits. The result is 2210, which matches an extension within the
extension range.
"Sample Solutions Using Dial Plan Configuration File
Commands"
on
page 320
using the dial plan configuration file.
268. For information about how to manage caller ID
on
page
297.
shows how to accomplish this pretranslation
Dial Plan Pretranslators
on
page 296
for detailed
"Incoming Dial
"Creating a
271

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