[Asterisk-Users] Digium and Asterisk

[Matthew Crocker]

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