User manual

235 and 245: Frequency of tariff pulses or signalisation pulse for begin and end of connection:
2 12 kHz
6 16 kHz
Other Reserved
Notes to PBX CO Line Interface Parameters:
It is very
important not to interchange dialling receive and send parameters! Dialling
send parameters meet the applicable standards; while dialling receive parameters must be set
with a sufficient reserve to receive even considerably damaged dialling. This applies generally
to both tone and pulse dialling modes.
The maximum timeout for a passively seized line is a pair of parameters determining
the time for delay in dialling after picking up the line, or delay in hang-up after hang-up by the
other subscriber. Parameter 226 is usually set at a higher time value than parameter 225. Then,
the GSM Gateway first transmits the busy tone and then, if you do not hang up, disconnects the
line current. After that, it tests the line every minute until the line is hung-up.
Parameters 231 – 235 – Dialling start and end signalling are used only if the PBX
requires this signalling, for call cost billing, e.g.
Parameters 241 – 245 – Pseudo-tariff rating is used only in case the PBX requires this
signalling or if a coin-operated device is connected. It works during GSM calls. Tariff pulses
during PSTN calls must be transmitted by public telephone exchanges.
Help for parameters:
201 = Selects the dialling type to be received by the GSM Gateway from the PBX or a telephone set.
Gateway receives only dialling of selected type; different dialling is ignored!
204-205 = Using this parameter you can change the pulse dialling reception features. Higher values may
make the receiver not receive all digits dialled!
206 = Minimum line current interruption time that is identified as “Flash” by the GSM Gateway. The
parameter is not used yet.
207 = Minimum line current interruption time to be identified as “Hang-Up” by the GSM Gateway.
211-216 = Using these six parameters you can change the ringing course. Use 2, 4, or 6 parameters as
needed, leaving zeroes for the remaining ones. (The selected course is repeated.)
224 = Maximum ringing time – but it is also limited by the GSM network (30 seconds, e.g.).
225 = If you do not start dialling after picking up the line, or do not hang up after call termination, the
GSM Gateway will start sending the busy tone after this timeout.
226 = If you do not start dialling after picking up the line, or do not hang up after call termination, the
GSM Gateway will disconnect the line current after this timeout.
231 = Method of informing of the PBX by the GSM Gateway that the connection has been established.
232 = Signal time used for informing of the PBX by the GSM Gateway that the connection has been established.
233 = Method of informing of the PBX by the GSM Gateway that the connection has been terminated.
234 = Signal time used for informing of the PBX by the GSM Gateway that the connection has been terminated.
235 = The signal frequency time used for informing of the PBX by the GSM Gateway that the connection
has been established or terminated – if frequency signalling is selected.
241 = Using this parameter you can disable or enable the transmission of tariff pulses during GSM calls
to be counted by the GSM Gateway according to the Call Sorting table data.
242 = Tariff pulse intensity selection – use more intensive signals unless they disturb calls.
243-244 = Using these two parameters you should select the highest tariff pulse transmission rate.
245 = Using this parameter you can select the tariff pulse frequency.
251 = Time after seizure, when PBX is able to receive CO line tone dialling (DISA).
252 = By selecting NO you allow the calling subscriber (except for intelligent routing) to hear the PBX
DISA message and to dial the extension itself.
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