Glossary of Terms

Understand basic Public Safety definitions and terms.

MT SMS

Definition:

Mobile Terminated Short Message Service. The delivery of messages from an application to a subscriber’s handset. MT
messages can be bulk SMS, standard rate, or premium SMS.

MO SMS

Mobile Originated Short Message Service. A text message sent by the user.

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Zone Default

The Zone Default number is like an MSC (Mobile Switching Center) default for GSM (Global System for Mobile Communication). Because there are...

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MT 9-1-1 SMSC

Mobile Terminated 9‐1‐1 Short Message Service Center. The MT 9‐1‐1 SMSC sends responses from the PSAP to the subscriber.

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School Safety

Refers to efforts and protocols aimed at protecting students, teachers, and staff from harm within educational settings, encompassing emergency...

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