12
Important warnings for using the SIM card
To ensure correct operation of the SIM card inserted in the GSM chronothermostat 01913, pay attention
to the following points:
• Contract SIM cards can be used to avoid a lack of credit or expiration of the SIM making the GSM
chronothermostat unusable�
If using prepaid cards, periodically check the remaining credit and the date of expiration�
If necessary, ask the chosen telephone operator for information on how to find out the remaining credit
and the procedures for topping it up, specifying that the SIM is installed in a device and that the
operations should preferably be carried out without having to take it out of the GSM chronothermostat�
• Before installing the SIM in the chronothermostat, insert it (as a test) in a GSM cell phone and carry
out the following operations:
- When switching on the telephone, check there is the request to insert the PIN code; if this is enabled
it is necessary to disable this request to insert the PIN
�
To do this, please see the instructions manual for the GSM phone used�
- Check the SIM card works properly by sending an SMS text message and afterwards seeing it has
been received; in addition, make a voice call too�
- It is recommended to delete any SMS messages there may be on the SIM card�
• When using an SMS there can be delays in delivering the messages; this can be caused by special
conditions of the GSM network�
IMPORTANT
: The GSM chronothermostat 01913 cannot use SIM cards of the phone carrier 3 ®�
3 ® Trademark registered by H3G in Italy�
