Vonage toll-free number and Asterisk 1.8.7

Hi everyone, hope you are doing great.

I’m in a company and we are served by Vonage, and this “line” is implemented as a trunk in our Asterisk PBX.

We want to implement a Vonage toll-free number (or similar) to forward all customers’ calls to our PBX with Asterisk v1.8.7, located in Mexico.

We want this to work for Canada, USA, Mexico, and Latin America just as this: anybody calling from anywhere dialing the toll-free number will be directed to our PBX.

Has anybody just implemented a toll-free number with a Vonage line? What is required to consider and to do for accomplishing this kind of service with Asterisk?

Thanks in advance.