United States Voice Features and Restrictions United States Voice Features and Restrictions

United States Voice Features and Restrictions

Vonage API Support

Country Summary

Country Name United States of America
ISO US
Country Code 1
Region North America
MCC (Mobile Country Code) 310, 311, 312, 313, 316

Caller ID Guidelines

Overview International reach:
  • Calls from International numbers are supported.
Domestic reach:
  • Only domestic Vonage numbers must be used to place calls via Vonage Voice API.
  • Domestic calls from non-Vonage numbers are best effort.
  • The self-service buying of numbers is available on Vonage's Customer Dashboard. In case numbers are no longer available, customers can still request a new number from Customer Dashboard by filling in and submitting the required information or by contacting their Account Manager to start the order. After the request is reviewed and there is no issue, the new number will be reserved for customer.
  • Outbound calls from Toll Free numbers are supported.
Porting numbers is available. Customers can contact their Account Manager to start the process.
CLI

See STIR/SHAKEN Caller ID Authentication and Robocalls

No other limitations apart from Local CLI or Invalid CLIs as explained in In-Country, Local, or No-CLI Calls Rejected

Use-Case & Content Guidelines

Content No limitations beyond those in our Acceptable Use Policy.
Other features or restrictions No limitations beyond those in our Acceptable Use Policy.

Additional Information

For more information, see the Voice Numbers Features Overview.

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