O'Reilly logo

Signaling System No. 7 (SS7/C7): Protocol, Architecture, and Services by Jeff Hewett, Lee Dryburgh

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 6. Message Transfer Part 2 (MTP2)

This chapter is the first in a series of chapters that examine a specific SS7/C7 protocol layer. This chapter details the Layer 2 protocol, which is known as Message Transfer Part 2 (MTP2). MTP2 corresponds to OSI Layer 2 (the data link layer) and as such is the lowest protocol in the stack. Sitting on the physical layer, it provides a reliable means of transfer for signaling information between two directly connected signaling points (SPs), ensuring that the signaling information is delivered in sequence and error-free.

MTP2 performs the following functions:

  • Delimitation of signal units

  • Alignment of signal units

  • Signaling link error detection

  • Signaling link error correction by retransmission

  • Signaling link ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required