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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--
Matthew S. Crocker
Vice President
Crocker Communications, Inc.
Internet Division
PO BOX 710
Greenfield, MA 01302-0710
http://www.crocker.com