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I had a quad E1 PCI setup with a PRI to the PSTN and a PRI to an
AS5300, the AS5300 was exactly handling analog modem calls.<br>
Works ok, as long as the CPU is always lightly loaded.<br>
Changing one E1 from PRI to SS7 should make no diference whatsoever if
you're using libss7, since libpri uses DAHDI and chan_dahdi for
bridging the call.<br>
It was like 6 years ago, so I don't even have the scripts. Just saying
it should work, specially with faster (newer) CPUs.<br>
<br>
José Pablo Méndez Soto wrote:
<blockquote
cite="mid:AANLkTi=NKsjSOJA+8ofL5a3+pTFRAO5HY8uvs1x7hc0z@mail.gmail.com"
type="cite">Thank you Horacio and Cary.<br>
<br>
We will try receiving SS7, routing via SIP, answering on the AS5300,
then looping back to itself (out PRI, in PRI ports) in order to invoke
the modem termination. This way we may be able to spare the TDM cards
in Asterisk and reuse the E1 ports installed in the gateway.<br>
<br>
Best regards,<br>
<br clear="all">
<b style="color: rgb(153, 153, 153);"><span
style="color: rgb(153, 153, 153);"><font size="2"><font size="2"><span
style="font-family: verdana,sans-serif;"><span
style="font-family: trebuchet ms,sans-serif;"><span
style="font-family: verdana,sans-serif;">José Pablo Méndez</span></span></span></font><br>
<img moz-do-not-send="true"
src="http://lh6.ggpht.com/_i2ybhYj6aPg/TOiAVvoDepI/AAAAAAAAAEs/DdN0iDAVpx0/s512/ccvp_voice_sm.jpg"
height="46" width="46"></font></span></b><b
style="color: rgb(153, 153, 153);"><span
style="color: rgb(153, 153, 153);"></span></b><b
style="color: rgb(153, 153, 153);"><span
style="color: rgb(153, 153, 153);"></span></b><b
style="color: rgb(153, 153, 153);"><span
style="color: rgb(153, 153, 153);"></span></b><b
style="color: rgb(153, 153, 153);"><span
style="color: rgb(153, 153, 153);"></span></b><br>
<br>
<br>
<div class="gmail_quote">2010/11/24 Horacio J. Peña <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:horape@compendium.com.ar">horape@compendium.com.ar</a>></span><br>
<blockquote class="gmail_quote"
style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hola!<br>
<br>
ZapRAS seems to work only with ISDN calls. "This command is not for use
with<br>
analog lines; it does not provide a modem emulator."<br>
(<a moz-do-not-send="true"
href="http://www.voip-info.org/wiki/view/Asterisk+cmd+ZapRAS"
target="_blank">http://www.voip-info.org/wiki/view/Asterisk+cmd+ZapRAS</a>)<br>
<br>
You need something doing the modulation. It seems that iaxmodem is your
best<br>
bet, and you'll have to make a good bunch of work on it to be able to
use as you<br>
want to.<br>
<br>
If your client has the cisco gateways, I'd suggest you to keep them.
They are<br>
very reliable and tested, and with MICA cards they have not a high
resale value,<br>
so you'll probably end with them as paperweights unless you happen to
have some<br>
stack of C549 cards to repurpose them.<br>
<br>
Saludos,<br>
H<br>
<div>
<div class="h5"><br>
On Wed, Nov 24, 2010 at 07:58:37PM -0600, José Pablo Méndez Soto wrote:<br>
> Hello,<br>
> We are working on implementing a solution for a medium service<br>
> provider. They were previously using a Cisco AS5300 gateway
with some<br>
> PRI trunks to receive modem calls, then route them out the
Internet.<br>
> The Telco they were buying the trunks from, discovered this<br>
> configuration and restricted them due to legal conventions, and
stated<br>
> that in order to continue doing this, they would have to talk
SS7<br>
> directly.<br>
> We are planning on solving this by placing an Asterisk server
with some<br>
> TE410 cards talking SS7 to Telco, and another 4 ISDN ports
talking to<br>
> the AS5300 for the dial-up to complete after authenticating
against a<br>
> RADIUS server.<br>
> My questions is: can we use only Asterisk to complete/terminate
the<br>
> dial-up connection, removing the AS5300 out of the picture? We
would<br>
> probably need a PPP channel configuration to link the modem
connection<br>
> with the Internet.<br>
> Current topology to be set-up:<br>
> Telco --> SS7 --> TE410P-AsteriskServer --> ISDN
--> AS5300 --><br>
> Internet<br>
> Ideal topology:<br>
> Telco --> SS7 --> TE410P-AsteriskServer --> Internet<br>
> Some posts talk about zapRAS being able to accomplish this, not
quite<br>
> sure though<br>
> Sounds like possible:<br>
</div>
</div>
> [1]<a moz-do-not-send="true"
href="http://lists.digium.com/pipermail/asterisk-users/2004-January/026956"
target="_blank">http://lists.digium.com/pipermail/asterisk-users/2004-January/026956</a><br>
> .html<br>
> [2]<a moz-do-not-send="true"
href="http://lists.digium.com/pipermail/asterisk-users/2009-November/24021"
target="_blank">http://lists.digium.com/pipermail/asterisk-users/2009-November/24021</a><br>
<div class="im">> 8.html<br>
> Sounds like not possible:<br>
</div>
> [3]<a moz-do-not-send="true"
href="http://lists.digium.com/pipermail/asterisk-users/2009-November/24020"
target="_blank">http://lists.digium.com/pipermail/asterisk-users/2009-November/24020</a><br>
<div class="im">> 2.html<br>
> Thanks in advance,<br>
> José Pablo Méndez<br>
><br>
</div>
> References<br>
><br>
> 1. mailto:<a moz-do-not-send="true"
href="mailto:asterisk-users@lists.digium.com">asterisk-users@lists.digium.com</a><br>
> 2. <a moz-do-not-send="true"
href="http://lists.digium.com/pipermail/asterisk-users/2009-November/240218.html"
target="_blank">http://lists.digium.com/pipermail/asterisk-users/2009-November/240218.html</a><br>
> 3. <a moz-do-not-send="true"
href="http://lists.digium.com/pipermail/asterisk-users/2009-November/240202.html"
target="_blank">http://lists.digium.com/pipermail/asterisk-users/2009-November/240202.html</a><br>
<br>
> --<br>
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<br>
--<br>
Horacio J. Peña<br>
<a moz-do-not-send="true" href="mailto:horape@compendium.com.ar">horape@compendium.com.ar</a><br>
<a moz-do-not-send="true" href="mailto:horape@uninet.edu">horape@uninet.edu</a><br>
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