For more Push specifics, please check this location
Push Status
ATS250?
Enable/Disable
ATS250=1 (enable)
ATS250=0 (disable)
Number of Pending Messages
ATS251?
First Push Message
ATS252?
Type of First Push Message
ATS253?
Discard Current Message
ATS254=1
To query the state of the signal
ATMW?
To activate/deactivate Message Waiting signal
ATMW=1 (activate)
ATMW=0 (deactivate)