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SHAKEN/STIR Protocol In A Nutshell

March 09, 20261 min read

SHAKEN/STIR IN A NUTSHELL

SHAKEN/STIR is a caller ID authentication system for phone calls.

It verifies that the phone number making a call is actually authorized to use that number.

Official GHL guide:

WHAT PROBLEM IT SOLVES

Before SHAKEN/STIR:

  • Anyone could spoof a phone number

  • Scammers could pretend to be banks, local businesses, or government agencies

  • Call answer rates dropped because people stopped trusting caller ID

WHAT IT DOES

When you place a call:

  1. Your carrier attaches a digital certificate to the call.

  2. That certificate confirms the number is legitimate.

  3. The receiving carrier verifies it.

  4. The call is marked as trusted or unverified.

If verified, it improves:

  1. Answer rates

  2. Caller ID reputation

  3. Deliverability

WHAT IT MEANS FOR GHL / REFERRAL SERVICE

For each client Sub-Account:

  1. The phone number must be properly registered

  2. The business must be verified

  3. A2P must be submitted

  4. CNAM must match the legal business name

If SHAKEN/STIR is not configured:

  1. Calls may show “Spam Likely”

  2. Calls may get auto-blocked

  3. Pickup rates drop significantly

SIMPLE WAY TO THINK ABOUT IT

SHAKEN/STIR is:

  • A digital passport for your phone number.

  • No passport = suspicious traveler.

  • Verified passport = trusted business call.

⚠️ For referral outreach where pickup rate matters, this is not optional.

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