I'd love to have the option for a transfer tool like the TwiML warm handoff but with an LLM-generated summary available as a variable like the other warm handoff options.

My use case is my transfer number has an IVR that speaks while it finds someone available to pick up the phone, so the "wait and then say" options don't work; they get triggered by the IVR. I'd love to be able to wait for someone on the other end to hit a DTMF key (looping a Say prompt) and then say the summary after that.