Lucent Technologies MERLIN LEGEND Release 6.1 Feature Reference page 764

MERLIN LEGEND Communications System Release 6.1
Feature Reference 555-661-110
Features
Uniform Dial Plan Features
LEGEND Communications System, this method of routing should be used.
However, DID facilities should be connected directly to the local DEFINITY
ECS or DEFINITY ProLogix Solutions systems.
Call Handling for Non-Local Dial Plan Extensions
When a local user dials a remote extension included in the non-local dial plan, he
or she does so using an SA or Shared SA button. For the system user, the call is
like a regular inside call.
The system takes the following steps in order to execute and direct the call:
1. The system consults the local dial plan to find the extension number. If the
number is not in the local plan, it searches the non-local dial plan. When
the called number is in the non-local plan, Step 2 takes effect.
2. Outward and toll restrictions assigned to the calling extension are
disregarded so that the user can make this particular "outside" call. The
extension's FRL is compared to the UDP route FRL. The extension FRL
must be equal to or higher than the route FRL in order for the call to go
through. If a remote access user is making the call or if the call is to a non-
local remote access code programmed into the non-local dial plan, the
barrier code FRL takes the place of the extension FRL.
3. The system locates the pattern associated with the extension number.
4. The system finds the lowest-numbered available route for the call,
beginning with Route 1. If all available routes are busy, the caller may use
Automatic or Selective Callback to queue for Route 1 on the local system.
5. The call is put through speedily. It may go through more than one system
before it is completed. For example, if a user on System A calls Extension
4551, the non-local dial plan may send the call to System B. If 4551 is not
in System B's local dial plan, it may be directed to a non-local dial plan
extension, in System C, for example.
6. At the non-local dial plan extension, the call rings as an outside call. If the
user at the remote networked system has an MLX display telephone and
the call arrives on a PRI tandem trunk, the display can provide caller
information even for 5-digit extension numbers, such as
The system manager programs display preferences to supply the
extension number, programmed name label, or both.
NOTES:
1. Users at MLX display telephones can receive incoming call
information for calls from non-local dial plan extensions, but only
if the calls arrive on PRI tandem trunks. A display preference
feature enables the display of extension number information,
extension label (name) information, or both, at display
telephones. For more information, see
2. Non-local dial plan programming can be used to route an
extension's calls to an outside number. This may be convenient
Issue 1
August 1998
Page 715
"Display" on page 247.
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