51
7. Miscellaneous
7.1. Telephone Cost Saving Tips
•
Select the appropriate GSM tariff rate while purchasing your SIM card. Since a high outgoing
load is expected, select higher lump-sum rates that mostly offer lower fees per called time
unit.
•
If your employees are equipped with mobile telephones, they will be able to call your
company more cheaply via the GSM network than through the fixed PSTN.
•
To make the best of your GSM Gateway for outgoing calls, you can bar incoming calls or
keep your GSM Gateway number secret.
•
Decide, depending on your load, whether to purchase a higher number of GSM Gateways.
•
Sometimes it is convenient to install a separate GSM Gateway for incoming calls. Here you
just need a SIM card with pre-paid credit and you need not pay a monthly lump sum.
Incoming calls then do not block your “main” favourable-rate GSM Gateway.
•
If your PBX allows so, set up the automatic seizure of a mobile network by the
ATEUS
®
-
GSM GATEWAY COMPACT to maximize your savings.
•
With advanced PBXs, it is possible to set up call barring statuses for each user separately.
To maximize your GSM telephone cost economy divide the users into the following three
groups:
1. No calls into the GSM network (busy tone
when the user tries to call).
2. Calls into the GSM network only via the GSM Gateway (busy tone
when the
GSM Gateway is busy).
3. Calls into the GSM network also via PSTN lines if the GSM Gateway is busy.
•
You can bar selected telephone numbers directly on your GSM Gateway.
•
Find how many “free minutes” and what types of calls are provided by the selected tariff rate.
If, for example, the rate provides free minutes into the fixed network and you allow the
subscribers to call only via the GSM network with the GSM Gateway, you will lose these
minutes.
All PBX programming options described herein are offered by
ATEUS
®
PBX systems
made by 2N TELEKOMUNIKACE a.s.
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