PSTN

Use the PSTN socket on the alarm dialler to connect an analogue line.

Note: We do not recommend using an ATA (Analogue Telephone Adaptor). If you do connect an ATA, the line voltage may give a false reading.

Customising PSTN settings

• Open Settings.
• Select PSTN in the navigation menu.
• Click Edit and adjust the settings as described below.
• Click Save.

Explanation of input fields

(Left-hand side)

Component

This component is enabled by default. Click the tick to disable the PSTN component. If disabled, the dialler will no longer send alarms via PSTN.

Tip: To maintain redundancy, we strongly recommend keeping the component enabled.

Prefix number

If you need to use a prefix to dial out via an analogue connection on an on-site PBX, you can add a prefix to all phone numbers here.

(Right-hand side)

Analogue phone-line

Wait for dial-tone

This setting is enabled by default. If you clear the tick, the system will not wait for a dial-tone before starting the voice call.

Check line

This setting is enabled by default. It protects the PSTN connection by monitoring the line voltage and generating a system failure message if necessary. If you clear the tick, you disable the security message and the dialler will no longer check the PSTN connection.

Good to Know: The dialler generates a security message after 5 minutes without power on the line. If you disconnect the cable during testing, you will receive a system failure message only after 5 minutes.