Twilio
What this section covers
Twilio is the agent's telephony: the number it calls from. In Growtek you add the account credential and verify the outbound line's number, which is then imported to Retell.
Prerequisites
A Twilio account with balance, its Account SID and Auth Token, and the number that will be used as the outbound line.
note
The steps inside Twilio (creating the account, adding balance, regulatory verifications and buying the number) will be documented separately.