Call pass-through allows you to start a call from the Outplay dialer like you normally would, but use a landline or cell phone to take the actual call. It's useful for when your internet connection isn't strong enough to support a clear call connection.
Note: Pass-through works by dialing first your pass through number and then your prospect's number. Twilio recognizes this as two calls, so using pass-through will double your call cost. We recommend you only use pass-through when necessary.
Pass-through numbers are added in the Calls screen.
Click the user menu, and click Settings.
To add a pass-through number:
Under Pass-through Number, select your country.
Type the number of the phone you want to use to make calls.
Your phone number must be a direct line, such as a landline or cell phone. Numbers with extensions are not supported.