[_e]

Here is a possible way to call from the native dialer in the event that data is not available...

One can prepend a calling card-like sequence, using hard and soft pauses, before the actual telephone number gets called so all calls get routed through twilio (or any VoIP carrier) for managing the caller id.

In other words, you are calling your personal calling card telephone number for every call so you will enter in your code and then enter the telephone number that you would like to call.