Unifone Small Office, Инструкция по установке и программированию

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I n s t a l l a t i o n & P r o g r a m m i n g M a n u a l
30
Alternative Carrier Selection (ACS)
The ACS feature allows a selection between two different
methods. The first method will choose a carrier depending
on the on and off-peak charge periods of each day of the
week. The carrier is selected by the system dialling a pre-
programmed carrier selection number to the network
before the telephone number.
The second carrier selection method, available on 208/212
systems only, will look at the telephone number dialled,
and select a specific exchange line depending on the
number dialled. It can be used, for example, to route
mobile telephone calls via a GSM gateway connected to an
exchange line port.
Method 1 - Carrier selection based on time of day
This method allows up to four alternative carriers to be
used for external calls in addition to the standard network.
The carrier is selected on the network by dialling a pre-
programmed number before each telephone call as follows:
Four alternative carriers may be programmed, each
with an access code of up to 9 digits.
An optional authorisation code may be programmed
with up to ten digits for each of the four alternative
carriers.
An optional pause of 0-9 seconds may be
programmed between dialling the carrier access code,
authorization code and the dialled telephone number,
if required by the network.
Alternative carrier selection works in the following way:
If an alternative carrier is enabled and active for the time of
day then the full external number is compared against an
exempt table. The exempt table contains 40 entries of 1-4
digits. If the digit(s) of any exempt table entry match the
start of the dialled digits then the call will not be sent via an
alternative carrier. This allows local numbers, free phone
numbers, and other network specific numbers to be
excluded from ACS. A number in the exempt table will
never be sent via ACS, regardless of the other settings. The
figure opposite shows the procedure used by the system to
route calls via an alternative carrier.
The time and day method of carrier selection works by
allowing or clearing an alternative carrier for the peak time and off-peak time period of every day.
The peak time period is separately programmed between any two hours of the day and is not to be
confused with day/night programming.
A separate code acts as a 'master switch'. This is to enable and disable alternative carrier selection
without losing any of the ACS programming.
Default
No calls are routed via alternative carriers. All carrier details are blank.
Figure 3-2 A.C.S. Dialling
Yes
No
no
Yes
Yes
No
External tel. no. dialled
Is non-default
carrier prog. for
curr. day/time?
Tel. no. begins
with an entry in
exempt table?
Is authorization
code
programmed?
Dial external telephone
number
Dial out carrier access code
for cur. time and day then
pause for programmed
pause time
Dial authorization code then
pause for programmed
pause time
Dialing finished