Panasonic S-ICX Manual

26

S-ICX (International) issued January 2000

S-ICX-10-700

Chapter 3. System Features

Section 700 - Operation

When Automatic Route Selection (ARS) is enabled, the system follows a preselected route for calls. 
Usually the selected routing is the least cost route. 

ARS works in conjunction with Toll Restriction Service (TRS) (Call Barring). Calls can be denied 
based on the programmed TRS (Call Barring) level for the originating party. (For more information, 
see “Ringing Modes” on page 57.)

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Three levels of ARS checking are available based on the dialled number following the ARS 
access code:

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Direct Route Selection: The simplest form of ARS routing that upon ARS entry 

(enter 9) directly selects a trunk group and any dialled number modification.

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Route List Selection: A more complex routing that includes up to 5 alternative 

levels of route selection and includes TRS (Call Barring) level checking.

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Time List Selection: The most complex routing that determines the appropriate 

route list based upon the day and time.

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Forced ARS is available on an Extension Class of Service (COS) basis. 

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A special day list provides tailored ARS routing for up to 20 holidays, vacation days, etc.

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Automatic modification of dialled numbers is available. This includes deleting up to 24 prefix 
digits and adding up to a 10-digit prefix and a 10-digit suffix. The modification of dialled 
numbers can include pauses, Dual Tone Multifrequency (DTMF) conversion, itemized code 
(extension number) and an authorization code. (Itemized code and authorization are not used 
in some areas.)

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Up to 8 authorization codes are available.

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The System can be set to automatically transfer trunk calls out to another trunk without requiring the 
call to be answered internally. This transfer may be either trunk based or extension based (i.e., call 
forward outside).

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