Dialogic DSI SS7MD Instrukcja Użytkownika Strona 15

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DSI Signaling Server SGW Mode User Manual Issue 5
Figure 1. M3UA Backhaul Configuration
1.9.9 M2PA Longhaul Operation
The Signaling Gateway is capable of replacing TDM SS7 links with signaling links operating over IP, providing
the equivalent functionality to MTP Layer 2 by using the SIGTRAN M2PA protocol. One use of M2PA signaling
links would be for the low cost longhaul of signaling traffic possibly involving SS7/SS7 protocol conversion.
Two Signaling Gateways would be required, one either side of the IP connection translating between M2PA
<-< MTP2. See Chapter 11, “Worked Configuration Examples” for an M2PA Longhaul configuration example.
Figure 2. M2PA Longhaul Configuration
1.9.10 Default Routing
The Signaling Gateway may be configured to use default routing. This is designed to allow greater routing
flexibility. See Section 6.5, “Configuration Commands” on page 55 for further information regarding default
routing.
SS7 Links
Signaling
Server
SEP
ASP1
M3UA Links
ASP2
Application
Server (AS)
SEP
SG1
SEP
Bearer
Channels
MTP2
Signaling
Links
MTP2
Signaling
Links
SG2
M2PA
Signaling
Links
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