DTMF Tones - Dual Tone Multi Frequency: This must be enabled on any phone receiving a call from the Telguard system as it generates the tone which triggers the operating equipment. Please check with your phone manufacturer of choice to ensure DTMF tones can be enabled.

CPA – Call Party Answered: If you have a landline based Telguard system, we recommend this setting is enabled in order to ensure calls divert successfully onto subsequent numbers (where applicable). This is usually a free service by your line provider.

CLI – Caller Line Identification: If you have a landline based Telguard system, and you’re using the Authorised Dial-In facility, this must be enabled so incoming numbers can identified. This is usually a chargeable service by your line provider.