A31003-D3000-M100-02-76A9, 11-2013
OpenScape Desk Phone IP V3R3, Phone Administration, Administrator Documentation
201
Administration
Dialing
Related Topics
Related Topics
•
Dialing
3.13.2 Canonical Dial Lookup
The parameters given here are important for establishing outgoing calls and for
recognizing incoming calls.
In the local phonebook, and, mostly, in LDAP directories, numbers are stored in
canonical format. In order to generate an appropriate dial string according to the
settings in Internal numbers and External numbers (
Canonical Dialing Configu-
ration
), internal numbers must be discerned from external numbers. The
canonical lookup table provides patterns which allow for operation.
Furthermore, these patterns enable the phone to identify callers from different
local or international telephone networks by looking up the caller’s number in the
phone book. As incoming numbers are not always in canonical format, their
composition must be analyzed first. For this purpose, an incoming number is
matched against one or more patterns consisting of country codes, national
codes, and enterprise nodes. Then, the result of this operation is matched against
the entries in the local phone book.
INFO:
To make sure that canonical dial lookup works properly, at
least the following parameters of the phone must be provided:
–
Local country code (
Canonical Dialing Configuration
)
|--- Local enterprise node
|--- PSTN access code
|--- International code
|--- Operator code
|--- Emergency number
|--- Initial digits
|
--- Admin
|--- Local Functions
|--- Locality
|--- Canonical dial
|--- Internal numbers
|--- External
numbers
|--- External
access
|--- Internat´l access
