How to replace the fuse: Open the fuse compartment with a screwdriver and replace the fuse and fuse cover.
This equipment should be used on PSTN lines requiring
The equipment must be connected to direct extension lines and a payphone should not be connected as an extension.
999 and 112 can be dialled on the apparatus after accessing the Exchange line for the purpose of making outgoing calls to the BT emergency (999) and (112) service.
During dialling, this apparatus may tinkle the bells of other telephones using the same line. This is not a fault and we advise you not to call Fault Repair Service.
Installation Manual
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