Two different things, both supported by Allo:
- Caller ID = which number is displayed. You choose it in the dialer when you have several lines.
- CNAM = which name is displayed. That’s this page.
Set your Caller ID Name
Rules and timing
- 15 characters maximum (letters and numbers): pick a short form of your business name, for example “SMITH PLUMBING” rather than “Smith Plumbing & Heating Services LLC”
- Propagation across carriers takes up to 72 hours
- CNAM applies to US and Canadian numbers: other countries don’t use the CNAM system