MSU – Message Signalling Unit
# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
< Back to glossary

MSU – Message Signalling Unit

The Message Signalling Unit provides the structure for transporting the higher layer protocol types in an SS7 network. These will include ISUP (ISDN User Part) TCAP (Transaction Capabilities Application Part) MAP (Mobile Application Part) and others. The difference between the MSU and signalling units such as LSSU (Link Status Signalling Unit) and FISU (Fill In Signalling Unit) is the MSU contains the SIO (Service Indicator Octet) and SIF (Service Information Field).

Enhance your knowledge further with our OnlineAnytime Training.

We have package options designed for individuals, teams and organisations. Our packages include:

5G content and courses continually being added
Access to NetX...supporting in understanding network complexities
ITP Certified courses also providing CPD learning credits
Access via Tablet, Desktop and Smartphone...maximising learning opportunities
View our package options

Need more information? Want to know more about what we do?
Contact Us or Call +44 (0) 1524 844669

Working together with