Terminal interface device

A telecommunications station comprising:

• a digital device connected to a telephone line;
• an alarm unit connected to the telephone line and operable in the event of an alarm condition to signal the condition via the telephone line to remote monitoring means;
• disabling means connected to the telephone line and operable to detect said signaling of the condition by the alarm unit and in response thereto to disable transmission by the digital device.

An alarm installation comprising;

• an alarm unit in communication with a remote site via a telephone line, wherein said alarm unit is capable of indicating an alarm condition to the remote site via the telephone line;
• a digital device connected to said telephone line;
• means for detecting the alarm condition indication and subsequently disconnecting the digital device from the telephone line.

A telecommunications station substantially as described herein and with reference to the accompanying figures.

A telecommunications interface device substantially as described herein and with reference to the accompanying figures.