The
Sangoma Signal Media Gateway (SMG) is a set of technologies that augment other media gateway and PABX projects so they can connect to the PSTN for SS7-controlled intermachine trunks (IMT) and SS7 services.
Sangma SMG is composed of the following components:
- Linux 2.6 operating system
- Sangoma WAn adapter cards and Wanpipe drivers for E1/T1 connectivity
- xmtp2km for SS7 MTP2
- ss7box for SS7 MTP3
- ss7boost for SS7 ISUP and SCCP
- sangoma_mgd? for managing IMT voice circuits with control info from ss7boost
- chan_woomera as a point of interface to media gateways
- media gateway/pabx (for example, Asterisk or FreeSwitch)
Rev 0.2 (Under Development)
- Clustering? - Multiple SMG platforms operate as a single entity. One or two SS7 links are sufficient to control a growing number of E1/T1 by adding cards and platforms to the cluster. Almost perfect linear growth curve.
- A-link support.
- ss7box platform redundancy for increased operational safety.
Rev 0.1 (Legacy)
- Tested with 8 E1 at full capacity on a single platform with a single high performance CPU at 80% utilization with G.711 voice streams.
- Voice codec interworking, CPU resource, and memory resource all impact call capacity.
- Tested in both ANSI and ITU environments.
- SS7 F-link capability with failover/failback support. Multiple linkset and multi-link linkset support. Alternate route support.
- See product plans for individual components listed above for more details.