See also:

Examples of the types of accidents in which the driver’s/driver’s and front passenger’s SRS frontal airbag(s) will basically not deploy.
The driver’s and front passenger’s SRS frontal airbags are designed basically not to deploy if the vehicle is struck from the side or from behind, or if it rolls onto its side or roof, or if it ...

For U.S.A.
The following information has been compiled according to Code of Federal Regulations “Title 49, Part 575”. ...

Taking a phone call and declining an incoming call
To take a phone call: Press the OFF hook switch . To put an incoming call on hold: Press the ON hook switch briefly. To decline an incoming call: Press the ON hook switch for more than 1.5 ...