what technologies are available to make calls automatically

[nguyenhaongnam]

hey, i have a project to do on mobile development n i came up wit the idea of having a helpline that is 24/7 for any type of emergencies. however i did not want it to be the typical "dial 999" application. i wanted it to work in ways if u cannot access a phone directly but still be able to call 999. i came up wit the decibel meter idea. for the scream to trigger off the call. however i wanted other technologies since the decibel meter have some limitations. any ideas will be highly appreciated. thanks alot!!

[sagarleo1]

Don't have that right now, but it was good to hear someone thinking that much deep. Plz share thoughts if you found something