SS7 MAP

What is SS7 MAP?

SS7 MAP (Mobile Application Part) is a signaling protocol that is used in telecommunication networks to provide various services, such as call setup, call routing, and short message service (SMS). It is a critical component of the Signaling System 7 (SS7) network, which is used by global telecommunications networks to route and control calls and messages between different carriers and mobile networks. The SS7 MAP protocol is responsible for the communication between different elements of the SS7 network, such as mobile switching centers, home location registers, and short message service centers.

SS7 MAP is a hierarchical, transactional protocol that is used to exchange information between network elements in the SS7 network. It is designed to be reliable and efficient, with built-in error detection and recovery mechanisms to ensure that messages are delivered accurately and in a timely manner.

How does SS7 MAP work?

The SS7 MAP protocol works by sending and receiving messages between nodes in the SS7 network. These messages contain information about the status of calls and messages and are used to route them through the network.

When a call or message is initiated, the SS7 MAP protocol is used to determine the best route for the call or message to travel, taking into consideration factors such as network availability, cost, and call priority. Once the route has been determined, the SS7 MAP messages are sent to the relevant network elements to set up and control the call or message.

For example, when a call is made, the originating network element sends an SS7 MAP message to the destination network element, containing information about the caller and the intended recipient. The destination network element then sends an SS7 MAP message back to the originating network element, confirming that the call can be connected. The SS7 MAP protocol then continues to control the call until it is terminated, exchanging messages to manage the call and handle any issues that may arise.

SS7 MAP Ratings

The security and reliability of the SS7 MAP protocol are essential for the proper functioning of telecommunication networks. To ensure that the SS7 MAP protocol is secure and reliable, it is regularly rated based on various criteria, such as its security, reliability, and performance.

Ratings for the SS7 MAP protocol range from A to F, with A being the highest rating and indicating that the protocol is highly secure and reliable. A lower rating, such as F, indicates that the protocol has significant vulnerabilities and is unreliable. These ratings help telecommunications companies and governments identify and address potential security threats and ensure that the SS7 network remains secure and reliable for its users.