On a motorway, why might it be better to use an emergency roadside telephone rather than a mobile phone?

Explanation: Using an emergency telephone enables the emergency services to find you more easily. Arrow markers indicate the location of roadside emergency telephones, and the phone operator will be able to pinpoint your location by tracing the call. If calling from a mobile phone, have the number on the nearest marker post to hand; this will let the phone operator identify where you are.

Category: Motorway rules (2023)