I want my Twilio number to continue to ring (without being answered by Twilio) until a number I want the call forwarded to answers.
According to the docs, the pause verb when used first in the response, delays pickup of incoming calls.
Is there a way to dial another number during this pause and connect the inbound and outbound calls only when the outbound call is answered?
In essence, I am trying to set up a simple call forward using the Twilio number. Just want to make sure everyone calling the number doesn't get charged even when the call goes unanswered.
Twilio developer evangelist here.
I assume you are using <Dial> to forward the call. If you have made a call to a Twilio number and it has reached some TwiML (that isn't <Reject>) then that leg of the call, the incoming leg, has started and is using Twilio resource and will incur charges regardless of whatever else happens.
Just as a technical point though, if you use the <Dial> attribute answerOnBridge="true" (and <Dial> is the first TwiML verb) the ringing behaviour of the call will be preserved until the other end picks up.
Let me know if that helps.