Hey, trying to create an agent for an HVAC company. It does a good job with scheduling inbound leads. Although, I cant figure out how to transfer a call to a person if customer is angry or anything. I added the phone number to the default forwarding number field but it just says "let me transfer your call to an agent and then silence and end of the call" so it doesnt acutally ring and external number. Do you know how to fix it?