Question 1

What causes poor caller ID reputation?

Accepted Answer

High call volumes from a single number, low answer rates, consumer complaints, short call durations, and calling numbers on the DNC registry all damage caller ID reputation. Carriers use these signals to flag numbers as potential spam, which triggers call blocking or spam labels on recipient devices.

Question 2

How do you improve caller ID reputation?

Accepted Answer

Register numbers with free caller registry services like CNAM, rotate numbers across campaigns, maintain healthy answer rates above 10 percent, implement STIR/SHAKEN attestation, and immediately stop calling numbers that generate complaints. AI platforms like Plura automatically monitor and rotate numbers to maintain reputation.

Question 3

What is STIR/SHAKEN and how does it affect caller ID?

Accepted Answer

STIR/SHAKEN is a framework that cryptographically signs outbound calls to verify the caller identity. Calls with full attestation (A level) are less likely to be flagged as spam. Carriers increasingly block or label calls that lack proper attestation, making STIR/SHAKEN compliance essential for outbound contact rates.

Caller ID Reputation

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