User manual

3.10. Notes

• Telephone Line Power Down (Model for External Line of PBX Only)

Dialling

, busy

, PIN

and PUK

tones are transmitted into a line for 60s. When this time elapses, the

line is put in the Power Down status (no power supply) until it is hung up. In the

programming mode, the line is put in the Power Down after 180s.

• DISA

The DISA service relates to incoming calls only. The GSM Gateway itself is not equipped

with the DISA function because it is useless – it is more convenient to use the PBX DISA.

For more details on the function refer to par. 3.3.1– “GSM Gateway Ringing, Extension

Dialling, Extension Ringing and Connection Establishing”. If DISA is used, you are

recommended to forward incoming calls at night, during absence or busy line to the

operator, mailbox or answering machine, because any connection attempt is billed to the

calling subscriber. Further, remember that the GSM operator usually limits the ringing

time (for 30s, e.g.) and there is not much time for sequential ringing of several lines.

• “Incognito” (Only for GSM network)

This function (refer to the “Programming“ chapter) prevents the called subscriber from

seeing the number of your GSM Gateway. This function can be used, for example, if you

want to reduce incoming calls in such cases as:

• Incoming calls from strangers represent no saving for you, but block your GSM

Gateway for your outgoing calls that can save your telephone costs considerably.

• The subscriber you called (even unsuccessfully) from your GSM Gateway has your

GSM Gateway number in his mobile phone without knowing that it is a GSM Gateway

number. When calling back, he or she may get through to another person (operator,

e.g.) and has to try to get to the person who made the call, paying for all this.

• “Outgoing Calls Only”

This function allows you to refuse all incoming calls. You can use it, for example, when

your GSM Gateway is busy making outgoing calls but you do not want to use the

Incognito function.

• GSM Gateway Indicators

GSM Gateway indicators are not necessary for every-day operation. They are used for

control purposes and indicate most operational statuses and failures. Common statuses

are green, less common statuses yellow, and failures are red. Every indicator is provided

with a clear text. For details refer to the “Installation“ chapter.