Lucent Technologies 8.2 User Manual
DEFINITY ECS Release 8.2
Administrator’s Guide
Administrator’s Guide
555-233-506
Issue 1
April 2000
Features and technical reference
1316
Dial Plan
20
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Although extensions with the same first digit can have different lengths,
data-channel extensions must have the maximum number of digits to avoid
timeout problems for data calls that the switch automatically sets up, for
example, the Call Detail Recording (CDR) link.
data-channel extensions must have the maximum number of digits to avoid
timeout problems for data calls that the switch automatically sets up, for
example, the Call Detail Recording (CDR) link.
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An extension and a Feature Access Code (FAC) can share the same first
digit only if the extension is longer as long as they are not used for
Automatic Alternate Routing/Automatic Route Selection (AAR/ARS)
faxes. These extensions work only within the switch; they do not work as
remote uniform dialing plan (UDP) extensions.
digit only if the extension is longer as long as they are not used for
Automatic Alternate Routing/Automatic Route Selection (AAR/ARS)
faxes. These extensions work only within the switch; they do not work as
remote uniform dialing plan (UDP) extensions.
Interactions
All dial-access features and services provided by the system require the dial plan.
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Attendant Display and Telephone (Voice Terminal) Display
Prefixed extensions display without the prefix. The return call button
causes the prefix to dial, even though it does not display.
causes the prefix to dial, even though it does not display.
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ISDN-BRI
When an ISDN-BRI station dials sufficient digits to route a call, but the call
could route differently if additional digits were dialed, the station does not
recognize the Conference or Transfer buttons. The user must delay dialing
for 3 seconds or dial # to indicate that the call can be routed based on the
digits already dialed. The Conference or Transfer buttons then are
recognized and the switch completes the operation.
could route differently if additional digits were dialed, the station does not
recognize the Conference or Transfer buttons. The user must delay dialing
for 3 seconds or dial # to indicate that the call can be routed based on the
digits already dialed. The Conference or Transfer buttons then are
recognized and the switch completes the operation.
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MF Signaling
Flexible numbering is supported in countries using R2-MFC trunk
signaling without Group II tones. Different-length extensions can exist as
long as the extensions have different first digits.
signaling without Group II tones. Different-length extensions can exist as
long as the extensions have different first digits.
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Property Management System (PMS)
Remove prefixes before messages containing the extension are sent to the
PMS. Five-digit extensions do not exchange with PMS until modifications
are made to the PMS interface.
PMS. Five-digit extensions do not exchange with PMS until modifications
are made to the PMS interface.
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Uniform Dial Plan
The following limitations apply to a distributed communications system
(DCS) environment:
(DCS) environment:
— Extensions that differ in length from the UDP do not distribute to
other switches.
— If the first two digits of an extension correspond to the floor number,
floors cannot be serviced by more than one switch.