What type of telematics call is similar to a 9-1-1 Open Line call?

The correct answer is a telematics call related to the activation of an emergency button without any voice communication. When a telematics device triggers an emergency button, it connects to emergency services but often does not provide an opportunity for two-way communication. This scenario is similar to a 9-1-1 Open Line call, where the call is established, but the dispatcher cannot communicate directly with the caller due to safety fears or an inability to speak.

In both cases, the call requires immediate attention and action from dispatchers while lacking detailed vocal information from the involved parties. Dispatchers must rely on additional data, such as location coordinates or vehicle information, to assess the situation and coordinate a response.

The other types of calls, such as a regular voice call, a test call, or a call from a landline, involve direct communication where information is exchanged and the ability to converse exists, making them distinctly different from the nature of open line and emergency button activation calls.