I also build something similar when I was living in an apartment. I've open sourced the it here: https://github.com/amccloud/django-tropo-webapi/ https://githu

I also build something similar when I was living in an apartment. I've open sourced the it here: https://github.com/amccloud/django-tropo-webapi/ https://github.com/amccloud/django-tropo-webapi/ and the bulk of it https://github.com/amccloud/django-tropo-webapi/blob/master/example/opengate/views.py https://github.com/amccloud/django-tropo-webapi/blob/master/... It was great because it allowed my roommate and I to buzz people in from our own cell phones. It also allowed me to set an entry code to give out to friends and for deliveries. It would sms me and my roommate when someone came through the gate. To further extend on that idea you could create specific codes for specific people that only work at specific times.