Phone Numbers

  • 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.

  • 411 Directory

    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.

  • Getting Numbers

    Learn how to get a business phone number from Telzio. Browse local, toll free, and international phone numbers from 60 countries.

  • Porting Numbers

    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.