Branded caller ID and no more "Spam Likely"

The problem

What was going wrong

Outbound calls were being flagged as "Spam Likely" on recipients’ phones, especially T-Mobile devices. Only about 10% of calls were picked up.

What we did

The fix

1. 1

   Test the caller ID on major carriers

   Call numbers on T-Mobile, Vonage and AT&T, note what shows up (company name, just a number, or "Spam Likely") and record which numbers need fixing.

2. 2

   Brand the local numbers

   Only local numbers can carry a custom outbound caller ID. The phone provider sets it to show the company name, up to 15 characters.

3. 3

   Register every outbound number

   Each number registered as a legitimate business number with T-Mobile, AT&T and Verizon, including numbers that were not flagged yet.

4. 4

   Replace numbers that will not clear

   A number that keeps showing as spam is swapped for a new one, while registration continues in the background without stopping outbound calls.

5. 5

   Keep testing

   Regular checks with a tool like calleridtest.com and test calls on T-Mobile, Vonage and AT&T, with registrations maintained over time.