User manual

Remarks and Explanatory Notes to Parameters
• If you program the GSM Gateway using a PC, on each line you can add a comment
that is saved but not sent to the GSM Gateway.
• The table has now 250 records; rows A01 to A98 and B01 to B54 are programmable
only by PC.
• Since the table is shared by several functions, the sorting must be detailed enough to
cover all purposes: if, for example, pseudo tariff metering is used, calls with different
cost have to be distinguished even if all of them are allowed.
1 – Number Beginning: used for call type identification (GSM, trunk, free, etc.). The
„Number Beginning“ field in line 599 cannot be filled - the parameters on this line are
used automatically for all numbers, which are not found in table.
2 – Call Barring: the parameter says whether the dialled number is allowed or barred.
3 –The most important parameter in this model; tells, which way the call will be
routed.
Note: Today's version of software sends busy tone always, when requested network
is inaccessible. Future version will have more fine settings - GSM only, PSTN only,
GSM prior to PSTN, and vice versa.
4 – Number Length: The parameter defines how long the number can be expected to be
for the given prefix. Therefore, the dialling into GSM network can start as soon as the
required number of digits is dialled. 0 means do not observe the number length –
enter zero here, if the number length is not fixed. If, however, the maximum number
length is known at least, you can enter it too.
5, 6 – Dialling End with ‘*‘ or ‘#‘: These characters can be a part of dialling with some
prefixes (GSM services, e.g.). Here they
cannot be used for terminating the dialling.
With other prefixes (fixed PSTN, e.g.) they are not used as a part of dialling, and here
they can be used for terminating the dialling. The GSM Gateway can then start
dialling as soon as the ‚*‘ or ‚#‘ character appears in the number.
Note: If ‘*’ or ‘#‘ or the number length cannot be used for terminating the dialling,
then a timeout will be used (programmable).
7 – Starting Tariff: Represents the minimum call cost. It is the number of tariff pulses
that are sent upon the call connection
additionally (the pulses are transmitted
closely one after another). Works only with calls to GSM network.
8 – Tariff Pulse: It is a time between two pulses – hence, the more expensive the call, the
lower the value. It is set in milliseconds to be as precise as possible – one step is 100
ms. a zero means do not send tariff pulses. Works only with calls to GSM network.
Note: It is safer to complete tariff rates with barred numbers too in case you enable
these numbers later.
9 – „Remove“ and 0 – „Add“: These parameters help forward calls automatically to the
Internet Call, e.g., or translate emergency numbers (PSTN to GSM), etc. The
„Remove“ item says how many characters are to be removed from the number
beginning, the „Add“ item contains the characters to be added – the number of these
characters can be different, of course. For example, you remove nothing, and add
‚42‘, or remove ‚150‘ and add ‚112‘, etc. Moreover, you can use the parameter for
your GSM Gateway access protection: add a „password“ for selected calls
(international, e.g.) and then remove it. Those, who don’t know the password, cannot
dial this prefix. See row 510 in table 7.3.4.
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