E911 Emergency Service
Learn how to enable 911 calling on your phone number and register your address so that you can make emergency calls to your local dispatchers.
Learn how to register your Telzio phone service with 411 directory.
Caller ID (CNAM)
Learn how to customize the caller ID of your Telzio phone number with CNAM.
Learn how to get a business phone number from Telzio. Browse local, toll free, and international phone numbers from 60 countries.
Learn how to port your existing phone numbers to Telzio. Porting can be completed without downtime to your phone service.
Spam Call Blocking
Learn how to block spam calls from reaching your Telzio phone numbers, and whitelist phone numbers to avoid being blocked by the spam filter.