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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>IAX or SIP trunks have similar
requirements, correct? You still need an IP link as transport. Granted IAX
might be more efficient.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Another thought is to simply use a Telco
provided point to point T1 to extend an open port on an existing PRI card in
the asterisk server to the remote PBX PRI interface. Anyone every done it this
way? The need to pass other data over the T1 is not really an issue, it
would only be a backup data route anyways, primary use is voice.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Ryan Amos
[mailto:ramos@finetooth.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, April 07, 2006 10:00
AM<br>
<b><span style='font-weight:bold'>To:</span></b> Damon Estep<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Asterisk-Users]
suggestions on an IP T1 to TDM T1 gateway solution</span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>You still need a CSU/DSU card. There are
plenty of data CSU/DSUs out there, I would suggest eBay. You may be able to
find a hardware CSU/DSU card somewhere. The Cisco router is undoubtedly cheaper
(you can pick up a used 2524 with a T1 card for $50; PCI cards are $500+) and
that is how many places still do their data T1s.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I much prefer this setup, actually, as it
is easier to break the T1 off and use it for other things (just plug it into a
VLANned switch and go to town.) You’re not really reducing your points of
failure either way, you’ve just moved it from hardware to software
(kernel drivers; plus zaptel does not behave well when the machine is under
load.)</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Just curious, if you have a PRI and
you’re just talking to asterisk on both sides, why not use IAX trunks?</span></font></p>
<p class=MsoNormal><font size=1 color="#8c8372" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#8C8372'> </span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Damon Estep<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, April 07, 2006 8:15
AM<br>
<b><span style='font-weight:bold'>To:</span></b> Asterisk Users Mailing List -
Non-Commercial Discussion<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Asterisk-Users]
suggestions on an IP T1 to TDM T1 gateway solution</span></font></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=FI
style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Can anyone offer up a suggestion on a reliable and cost
effective customer premise hardware setup to be able to take an inbound IP T1
and deliver a PRI interface to a remote office?</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Trying to reduce the amount of hardware required to
implement this, right now we use a Cisco router to take the IP T1 in on a
serial port and then we go Ethernet to a slimmed asterisk box with a single
port T1 card, and from there to the PBX PRI port.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Seems like we should be able to skip the router and build an
asterisk solution with 2 T1 ports, one for the data T1 and one to the PBX
(PRI), and then an Ethernet connection to the LAN/Firewall.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Maybe there is a non asterisk solution that works well with
asterisk?</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The other end is asterisk as well.</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Anyone done this successfully on a single device?</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> </span></font></p>
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