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<p class=MsoNormal><span style='color:#1F497D'>I’m pretty sure it’s
the gateway, we tried dialing back and forth internally and it was fine every
time.. We ran this setup but with different hardware (1700V routers for
pstn gateways and same exact hardware revision and image on the ata186s).<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>The region is definitely set for
G.711.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>The relevant part of the config
is below with ccm IP xxx’d out.. Im hoping I just overlooked
something. <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>!<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>controller T1 0/3/0<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> framing esf<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> linecode b8zs<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> pri-group timeslots 1-24
service mgcp<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>!<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>interface Serial0/3/0:23<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> no ip address<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> isdn switch-type
primary-5ess<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> isdn incoming-voice voice<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> isdn bind-l3 ccm-manager<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'> no cdp enable<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>!<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>mgcp call-agent XXXXXXX
service-type mgcp version 0.1<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>mgcp dtmf-relay voip codec all
mode cisco<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>mgcp modem passthrough voip mode
nse<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>mgcp modem passthrough voip
redundancy<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>mgcp package-capability
rtp-package<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>!<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>mgcp profile default<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> James Buchanan
[mailto:jbuchanan@ctiusa.com] <br>
<b>Sent:</b> Wednesday, October 08, 2008 10:28 PM<br>
<b>To:</b> Bryan Socha; cisco-voip@puck.nether.net<br>
<b>Subject:</b> RE: [cisco-voip] Modem passthrough issues.<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>I would be interested to see
your gateway config. I assume you have modem passthrough enabled everywhere.
Also, is your ATA in a device pool with a region set for G711?<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>Bryan Socha<br>
<b>Sent:</b> Wednesday, October 08, 2008 7:18 PM<br>
<b>To:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> [cisco-voip] Modem passthrough issues.<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>We’ve been running a ccm setup for about 5 years now,
many versions.. we’ve always used ata186s for faxes and
modems.. We recently had a tech refresh of the system after a lease
ended and we can’t get the modems to work. Actually there is only 1
modem we care about. The one for the security system. We’ve
never needed to give it a dedicated pots line and would prefer to not go that
route. We are fully aware the ata186 doesn’t support modem
passthrough but its always worked in the past.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>We’re using PRI lines with 2811 routers for the pstn
interface. Everything is setup right, the modem does answer but the call
drops about 30 seconds later on its own. Well we think on its own,
we’re not sure if its just the security company software timing out, they
obviously have very little information about their side…<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Is anyone using a 2800 series router with modem passthrough
combined with ATA186 adapters? I’d love to know your config
for the combination of hardware.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks,<o:p></o:p></p>
<p class=MsoNormal>Bryan<o:p></o:p></p>
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