NEC UNIVERGE SV9100 Features And Specifications page 63

Conditions
ARS is intended for areas that use the North American Number Plan (NANP).
Line keys, Call Appearance (CAP) Keys, outgoing trunk group keys, dialing 704 + trunk
group, dialing +trunk number, and speed dial numbers assigned to a certain trunk group
can all be used to by-pass ARS.
If no PBX access code is entered in the Dial Treatment, the system can still dial 911.
Toll Restriction overrides ARS.
A system with Automatic Route Selection (ARS) cannot also have Trunk Group Routing.
With ARS installed, Trunk Queuing automatically queues for the least costly route. The
system automatically redials the queued call when the extension user lifts the handset.
Speed Dialing may bypass ARS routing.
Set up other options for outgoing calls (e.g., unassign line keys, adjust gains, ARS access
key, Call Appearance (CAP) Keys, etc.).
Refer to Dial Tone Detection
Tone Detection.
ARS does not permit 0 and 011+ calls to be routed out separate trunk groups. The
UNIVERGE SV9100 supports only direct trunk selection for dial 0 (Operator) type calls.
If an entry of 911 is programmed in ARS, but ARS is turned off, 911 calls still attempt to
route using ARS.
When using ARS Class of Service Matching, CCIS calls will always follow Class of Service
1.
If a user dials a number not programmed in ARS, Program 26-01-03 determines if the
system should route over the trunk group settings defined in Program 21-02 or play an error
tone.
When using ARS Class of Service, with Program 26-01-03 set to (1) "Play Warning Tone",
any trunk (except a CCIS trunk) pointed or transferred to a virtual that is Call Forward
Off-Premise will not complete. For a virtual to Call Forward Off-Premise, Program 26-01-03
must be set to "Route to trunk group" and the call will follow the trunk group settings of the
trunk, assigned in Program 21-03.
When using ARS Class of Service, with Program 26-01-03 set to (1) "Play Warning Tone", a
CCIS trunk pointed or transferred to a virtual that is call forwarded off premise will always
follow ARS Class 1 routing properties.
Default Settings
Disabled
System Availability
Terminals
None
feature for the specifics on how the system handles Dial
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