I just received a call from CO asking me to to automated phone checkin. I had never heard of this service before, so I gave it a try. It was very convenient -- the entire phone call took 1 minute 43 seconds. The automated system asked me (1) if I was travelling with an infant on my lap (no) (2) how many bags I plan to check (zero) (3) Whether I'd like my boarding pass via fax or at the airport (interesting... no email/PDF/mobile option) Has anyone else used this system? Is there any way for the customer to proactively phone into the system?