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2-Factor Authentication (2-FA)

2-Factor Authentication (2FA) is an extra layer of security that requires users to use both their online password and their mobile phone to verify their identity in order to access a service or a web app. In addition to using their service credentials to access sensitive data, the user also receives a one-time passcode or PIN number on their token or via SMS.

2-Way SMS Messaging

2-Way SMS Messaging is a system that incorporates both outbound (Mobile Terminated or MT) and inbound (Mobile Originated or MO) SMS into one fully-featured service. By using a dedicated number, a 2-Way SMS user can send and receive SMS through a web messaging platform by using complete solutions or APIs. It is enabled using short codes or virtual long numbers (also known as virtual mobile numbers). The main difference between the two is the length of the number; while virtual mobile numbers look like a standard phone number, short codes have between 3 and 6 digits, making them easier to remember. Short codes can only be used on a national level though and countries around the world have different regulations and requirements concerning them.

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A2P (Application-to-Person)

The process of sending mobile messages from an application to a mobile user. A2P SMS messaging is also called enterprise or professional SMS. Businesses can use it in several technical modes to communicate with consumers, authenticate users of online services, or deliver time-sensitive alerts. In all the cases, communication is initiated from a business application, and not an individual’s mobile phone, as is the case with P2P SMS.

Alphanumeric Sender ID

The alphanumeric sender ID technology allows the sender to send messages using a custom, recognizable sender ID constructed from any combination of numeric and alpha characters (0-9, a-z, A-Z, _).

API (Application Programming Interface)

An Application Programming Interface (API) is a software intermediary that allows two applications to talk to each other. Each time you use a chat app, send an instant message or check the weather on your phone, you’re using an API.

App Notification

An app notification is a message or alert sent by an application to the user. Notifications sent this way do not require the application to be open and messages are displayed on the screen of the mobile even when the device is locked.