PSD Telecommunications Technology and 9-1-1 Systems 2

Question 1

What does the term 'ANI' stand for in 9-1-1 telecommunications?

Accepted Answer

Automatic Number Identification

Answer

ANI stands for Automatic Number Identification, which delivers the caller's phone number to the PSAP.

Question 2

Which generation of 9-1-1 allows callers to send text messages to a PSAP?

Accepted Answer

Next Generation 9-1-1

Answer

Next Generation 9-1-1 (NG9-1-1) supports text-to-911, video, and data beyond traditional voice calls.

Question 3

A PSAP receives a 9-1-1 call but ALI data shows 'No Record Found.' What is the BEST immediate action?

Accepted Answer

Ask the caller to verify their location verbally

Answer

When ALI fails, the dispatcher must verbally confirm location with the caller to ensure accurate emergency response.

Question 4

What is the primary function of a selective router in the 9-1-1 network?

Accepted Answer

Routes calls to the correct PSAP based on the caller's location

Answer

The selective router directs 9-1-1 calls to the appropriate PSAP based on the caller's ANI/ALI data.

Question 5

Which protocol is commonly used to transfer 9-1-1 call data between systems in a NG9-1-1 environment?

Accepted Answer

SIP (Session Initiation Protocol)

Answer

SIP is an IP-based signaling protocol used in NG9-1-1 to handle voice, video, and data session establishment.

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