Handle call end in twilio

I am building a conversational voice bot with Twilio and Node.js. Whenever a call ends, I need to send collected data(collected in Twilio autopilot Memory object) to a database. If the user completes the entire question-answer session with the bot, I am able to send the data to a DB. But if the user hangs up the call in between, the execution of functions stops completely. To handle this, I am triggering a function(called callEnd.js) execution on call-end using 'CALL STATUS CHANGES' in the Twilio console. But the event object provided in callEnd parameter does not contain the Memory object. How do I handle this? My objective is to push partially collected/full collected data to DB