Call parking: put callers on *701, pick them up anywhere

Connect now does proper call parking on the Twilio platform. Park an active call to one of ten parking slots (*701 through *710) and pick it up from any phone in the company by dialing the slot. Under the hood each slot is a Twilio Queue, so parked callers hear hold music instead of silence.

Parking also works from call flows, so a receptionist flow can park and announce calls without a human in the loop.