SMS: The acronym for Short Messaging Service stands for one of the most widely used type of mobile messaging. SMS messages can include up to 160 characters.

MMS: The acronym for Multimedia Messaging Service stands for the common way to send multimedia content to or from a mobile phone over a cellular network. MMS extends the capabilities of SMS messages from 160 characters to 1000 characters. MMS messages can includes subject lines, short videos, audio clips, and pictures.

MT: The acronym for "mobile terminated" message. Mobile terminated are messages sent from the mobile provider to a subscribers mobile phone

MO: The acronym for "mobile originated" message. Mobile originated messages are messages sent from a users phone.

Default Message: Default message is the term used to describe the messages sent to a user's phone for any words not planned (set up) for a short code (e.g. a word not set up as a keyword). These messages ensure that all users receive some response.

Help Message: Help message is the term used to describe the message a contact is sent when the they respond with the HELP keyword. Help messages provide additional details on the program running for the specific short code.

Stop Message: Stop message is the term used to describe the message a contact is sent when the respond with the STOP keyword. This keyword removes a contact from all activities associated with all programs on a short code.

Keyword: The word a contact will text into a short code to initiate text communications. The term is used to describe the word associated within a call-to-action.

Carrier: An SMS carrier refers to the wireless cellular service providers (e.g. Verizon, AT&T, Sprint)

Provisioning: The process of the wireless carriers approving the content that will be running for the short code on their network. An application describing the program and content is summitted to each wireless carrier for review and approval.

Short Code: An SMS short code is a 5 or 6 digit number that is used by business to opt-in consumers to their SMS programs. This is then used to send text message coupons, offers, promotions etc. to contacts who have previously opted in.

Aggregator: Aggregators connect Listrak to the carriers. All SMS traffic must go through an approved aggregator to reach a carrier network.

Compliance: SMS compliance rules are built on the foundation laid out by the Cellular Telecommunications Industry Association (CTIA) and the Federal Communications Commission's (FCC) Telephone Consumer Protection Act (TCPA).

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