Glossary of Terms

Understand basic Public Safety definitions and terms.

PDM

Definition:

SnapTrack Position Determination Module, consisting of a location server and a WARN manager.

MO SMS

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

Read More

MT SMS

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

Read More

Zone Default

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

Read More

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.

Read More