Auto Route Selection; Introduction; About Automatic Route Selection; About Toll Restriction - Talkswitch CT.TS005.003904 User Manual

AUTO ROUTE SELECTION

Introduction

Enable password protection when ARS or toll restriction is used. Change the system password
frequently to prevent unauthorized users from making calls or changing the configuration.
See Administration on page 27.

About automatic route selection

Automatic route selection (ARS) routes outgoing calls to a certain hunt group depending on the
leading digits. It can also prefix phone numbers with certain carrier codes depending on the
leading digits and time of day. This way calls can use specific telephone lines, alternative
carriers, or VoIP lines, for least-cost routing. For example, ARS can route international calls to a
VoIP service provider; national calls to an alternative carrier offering a discounted calling plan;
and calls to cellular phones on a telephone line that is connected to a fixed wireless terminal for
cellular-to-cellular calling.
If the user dials a hunt group number, ARS can override the selection and use a different hunt
group depending on the leading digits.

About toll restriction

Toll restriction blocks outgoing calls based on the leading digits. For example, toll restriction
can block calls to inappropriate or premium rate services (e.g. 1-900 numbers).

About leading digits

The leading digits are the first numbers dialed when placing a telephone call. The leading digits
could be an international access code, country code, national code, STD code, area code, leading
digits of premium rate service codes, or phone number. For example, "1900" are the leading
digits of 1-900-555-1234.
The leading digits used in each country are subject to the national numbering plan. Your
telephone directory will provide information on the numbers used.
Calls with leading digits that do not match the entries in the ARS table will be routed to the
hunt group originally dialed by the caller.
ARS and toll restriction act on the longest leading digits entry matching the dialed number. For
example, an entry in the ARS table blocks numbers with leading digit "1" to prevent long-
distance calls. However a second entry routes numbers with leading digits "1800" through a
hunt group because they are toll-free. Because the second entry (1800) is longer than the first
entry (1), the second entry has precedence. Therefore a call with leading digits "1800" is routed,
even though leading digit "1" would otherwise cause it to be blocked. This technique can reduce
the number of entries required in the ARS table; and can be used to restrict calls to all but
specific area codes or countries.
• Leading digits can be 1–11 numbers in length.
• Leading digits can include numbers 0–9.
• The leading digits exclude the hunt group number dialed by the user.
T A L K S W I T C H C O N F I G U R A T I O N 152