In order to add Prefixes to your numbers, please follow the steps below:
Prefixes add a custom number/s that must be dialed before dialing a specific number and can be used for additional functionality.
Example: You can use this to split calls for specific countries with a singular number
1. In order to add Prefixes, navigate to the Settings, Voice section and click on Phone Numbers: 2. Next click on the Outbound tab and click Create, you can also click on an existing route to a add a prefix to it:
3. In the Outbound Route you can add a Rule/s where you can specify a prefix, you can have multiple rules specifying different prefixes and destination countries: 4. You can also add a prefix to a Random Route Group: