We have added true Native drivers in MGW for SMS. This means the SMS provider code is separate and unique for each provider. We can now tailor the UI and code to fit that provider and not burden the user with unnecessary fields.
One-Way Texting:
Custom (all existing support before native drivers)
Bulk SMS
*Clickatell
*Message Media
**Plivo
**Twilio
Two-Way Texting:
Clickatell (Custom)
Message Media (Custom)
* new driver implementation natively
** completely new