Mitel SX 200 DIGITAL Pabx General Descriptions Manual

System Features
l An extension with Option 226 (Inward Restriction DID) in its COS cannot
receive a call directly from a DID trunk. It is treated by the system as an ille-
gal number.l
Calls attempted using vacant or illegal numbers can be routed to answer-
ing points for completion; see ILLEGAL ACCESS INTERCEPT and VACANT
NUMBER INTERCEPT.l
DID trunks receive ringback tone when calling and camping onto a busy
device. They receive busy tone if they reach a busy device and no busy in-
tercept occurs (see...

Features Description
ter the code is dialed, the system returns dial tone to the caller, who may then
access features in the 
DISA trunk’s COS except those which require a switch-
hook flash.
Optionally, the external caller can be forced to enter a special account code
rather than the standard 
DISA access code.; see VERIFIED ACCOUNT CODES
(SPECIAL 
DISA).
DISA trunks can be supported on many different hardware types. See TRUNKSUPPORT-Tl,TRUNKSUPPORT-Tie,TRUNKSUPPORT-E&M.
A trunk can optionally be DISA...

System Features
lUp to seven digits can be absorbed from the trunk.
lAccess to the allowed features is controlled by the COS assigned to the
trunk.
0 The features available to DISA trunks include:
- account codes
- ARS
- console hold slot retrieve
- paging
- system abbreviated dial
ProgrammingIf the trunk is to be a 
DISA trunk during Night Service only, enable COS Op-
tion 810 (DISA During Night Service Only) for the trunk, and set the 
DISAtrunk DAY service routing in CDE Form 19 (Call Rerouting Table)...

Features Description
CO trunks are assigned an origination point for DAY, NIGHT 1, and NIGHT 2
service. They can optionally be assigned as a dedicated line on a 
SUPERSET
telephone.
For the hardware that supports CO trunk type operation, see TRUNK SUPPORT-CO(LS/GS),TRUNKSUPPORT-Tie,TRUNKSUPPORT-DID,TRUNKSUPPORT
-E&M, and TRUNK SUPPORT - Tl.
The NIGHT1 or NIGHT2 service for CO trunks can be changed directly from the
Attendant console; see FLEXIBLE NIGHT SERVICE.
Also see DIRECT-IN LINES.Conditions
The...

System Features
Refer to Practice 
9109-094-220-NA, Automatic Route Selection for the selec-tion of options for outgoing calls.
Operation
NoneTrunk Operation -Tie
Description
3.113 The Tie trunk type is one of the four trunk types, independent of the
hardware actually used to support the types, used in the system.
Tie trunks allow incoming trunk calls to reach extensions directly, without
Attendant intervention or assistance. The number of digits expected from the
trunk is unknown. Digit absorption and...

Features Descriptionl
The limit to the number of digits that a Tie trunk can dial is the same as for
an internal extension (25). This includes the prefix digits but not the ab-
sorbed digits.
0The trunk may be programmed to ignore incoming DTMF digits, and to
recognize only rotary digits.
lA DTMF receiver is needed when a Tie trunk originates. If there is no re-
ceiver available then the trunk waits indefinitely until a receiver is avail-
able. Digits received on the trunk are stored and processed when a...

System FeaturesTrunk Support 
- Direct Inward Dial (DID)
Description3.115 DID Trunks are supported in the SX-200 DIGITAL PABX. The following
types of DID trunks are supported:
l Wink Start
l Delay Dial
l Immediate Dial
DID trunks support Tie, CO, DID, and 
DISA operation.Conditions
The following conditions apply to this feature:
l Analog Bay DID trunks can be used outgoing.l
Digital DID trunk cards are incoming only.
0Digital DID trunk cards do not support DISA type operation.
ProgrammingEnter the trunk...

Features Description
Select options for the E&M trunk type via CDE Form 13 (Trunk Circuit Descrip-
tors).
Select options for the specific trunk circuits via CDE Forms 14 (Non-Dial-In
Trunks) and 15 (Dial-In Trunks).
OperationNoneTrunk Support 
- Tl
Description3.117 The SX-200 DIGITAL PABX supports Tl trunks. The link signaling used is
Tl D4 Channel Associated Signaling (CAS), also referred to as DS-1.
The PABX can be provided with a 
Tl clock module, that the system can adjust
to keep the system in phase...

System Features
There are two different states for a 
Tl trunk that is out of service, a yellow or
red alarm. A yellow alarm is the result of a link-based event. The link trans-
mits a yellow alarm condition on the link, which signals the far end that the
link is out of service. This is the action taken on the service threshold limits or
the reception of a yellow alarm condition from the far end.
A red alarm is based upon loss of synchronization on the link. Maintenance
logs are generated for any change...

Features Description
l Changing the entries in CDE Form 44 (Tl Network Synchronization) will
override manual mode and change the PABX mode to 
freerun or auto.
lThe term link is synonymous with a Tl trunk card.
lThe normal maintenance busy-out feature applies to a circuit on a link
and not the link itself. The link remains active but the circuit(s) are dis-
abled.
ProgrammingEnter the trunk into the system’s physical configuration table via CDE Form 01
(System Configuration).
Specify options for the 
Tl...