Chatter's SMS messaging capabilities allows you to receive notifications directly from Chatter to your phone. Phone numbers are set up on a per-user basis so multiple users in one organization can set up their own profile.
Navigate to the "Settings" page (bottom left corner). On the right, you'll see a checkbox called "Enable SMS". Upon activating, you can now enter a phone number to receive text messages.
All - Any message generated by any machine on Chatter
Messages - General messages, example "Haas VF-1 produced 1 part in 4m 39s"
Alarms - Machine alarms, example: "Alarm on Haas VF-1: 102 SERVOS TURNED OFF"
Tools - Tool life alarms, example: "Tool Life Exceeded on Haas VF-1: T51 1/2in Rougher"