M3UA
The M3UA (Message Transfer Part 3 User Adaptation Layer) layer can be used like this:
- extend an MTP3 link
- replace the MTP3 and MTP2 layers entirely
- do a signaling gateway (SG) with a shared point code
- do a signaling gateway (SG) to another signaling gateway with a shared point code
Here are some examples:
FIGURE 1:
FIGURE 2:
TelcoBridges and M3UA
TelcoBridges supports M3UA as part of its support for SIGTRAN.
Sigtran use cases
You can see some use cases for Sigtran here: Sigtran use cases and M3UA Configurations
Configuration
References
- Article at Protocols.com
- Wikipedia article
- RFC 4666 Signaling System 7 (SS7) Message Transfer Part 3 (MTP3) - User Adaptation Layer (M3UA)