Frequently Asked Questions

Can my business in Europe use a US SIM card?

US mobile phone companies have a requirement in their terms & conditions that the user's primary use of the service must be within the United States. They do this to control their costs. In contrast, duoFON provides a mobile number which we operate within the United States on behalf of your business.

Can my business in Europe use a Voice over IP phone number in the US?

A number of service providers in the United States now refuse to accept Voice-over-IP numbers for account verification. In contrast, duoFON operates actual mobile phones on behalf of your business. The phone numbers are mobile numbers, not VoIP, and will be accepted for any purpose for which a mobile number works.

Can my business in Europe use a Google Voice phone number in the US?

A number of service providers in the United States now refuse to accept Voice-over-IP numbers like Google Voice uses for account verification. In contrast, duoFON operates actual mobile phones on behalf of your business. The phone numbers are mobile numbers, not VoIP, and will be accepted for any purpose for which a mobile number works.