SS7 is a *signaling* standard, much like SIP, MGCP, H323. It is not an encoding standard like PCM,g.711, g.729. Asterisk does not currently support SS7. You could buy a SS7 -> SIP (SIP-7) service from a couple different service providers. Then you could use Asterisk to take in your IMT bearer trunks and act as a media gateway. The answer to the number of cards you can put in a PC depends on the codecs you plan using on the PC. A Dual Xeon 3.2GHz with 800MHz FSB can handle about 96 g.711 -> g.729 transforms before it starts to melt. If you need >96 calls I would recommend you look into a real media gateway (Lucent TNT, Cisco AS5350) and have Asterisk act as a MGC and feature server.
-Matt
On May 17, 2005, at 11:05 AM, Marc Khayat wrote:
Hello,
I need to implement Asterisk and Digium cards for intra-office and international calls.
PSTN <---SS7---> Asterisk+Digium <---IP---> SER <---IP---> Asterisk +Digium <---SS7---> PSTN
Can I please have an answer about the following questions?
How many Wildcard TE410P or TE405P can I put in a Linux PC?
I need it to operate using SS7, how many SPC (signaling point code) can I put on the PC? PS: I have 6 operators (PSTN networks)
Will Asterisk with Digium cards work much the same as a normal SIP gateway? Can it register to an SER and send its prefix?
Thanks,
Marc
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