<div>Hi,<br> <br>Thanks for everyone's input so far. I think Jim's suggestion is most along what I'm trying to achieve. I believe that XO take a similar approach to this for our offices in the US, certainly they've got a 2821 that provides a T1 PRI to a BCM400.<br>
<br>Thankfully, our four digit DN's map to the last four digits on the DDIs, so this shouldn't be a major drama.<br> <br>Obviously, I'll need to get a E1 Interface module for the interconnect the BCM - and I'm currently looking at the HWIC-1CE1T1-PRI. Will this work correctly? Also, am I likely to need any more DSP to handle this extra processing?<br>
<br>Sorry for all these "newbie" questions - I really appreciate the help.<br> <br>Thanks,<br> <br>Rupert</div>
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<div class="gmail_quote">On 8 July 2010 00:08, Jim McBurnett <span dir="ltr"><<a href="mailto:jim@tgasolutions.com">jim@tgasolutions.com</a>></span> wrote:<br>
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<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">This is doable..</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Configure the router as a Cisco CUBE—search Cisco’s site on that..</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"><a href="http://www.cisco.com/en/US/docs/ios/voice/cube/configuration/guide/vb_book/vb_book.html" target="_blank">http://www.cisco.com/en/US/docs/ios/voice/cube/configuration/guide/vb_book/vb_book.html</a></span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Basically ---</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">SIP Dial-peers to the SIP PROVIDER..</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">h.323 Dial peers to the PRI port..</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Read the Cisco Gateways Gatekeepers book for the h.323 config and you will also need the info from there on the translation patterns.</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">If in the states—I use this rule…</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Pulls the first part of the extension of and sends the last 3 digits that you can match on to the h.323 peers..</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">voice translation-rule 2</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> rule 1 /\+\(15555555\)\(...\)/ /\2/</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Now if your DID’s have NOTHING in common with the extensions, then you’re in for some fun</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">IE 15555552323 goes to ext 879</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Later,</span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt">Jim</span></p>
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<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt"> </span></p>
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<p class="MsoNormal"><b><span style="FONT-SIZE: 10pt">From:</span></b><span style="FONT-SIZE: 10pt"> <a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a> [mailto:<a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a>] <b>On Behalf Of </b>Rupert Finnigan<br>
<b>Sent:</b> Wednesday, July 07, 2010 5:26 PM<br><b>To:</b> <a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br><b>Subject:</b> [cisco-voip] SIP to Legacy PBX</span></p></div>
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<p class="MsoNormal">Hi All,</p></div>
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<p class="MsoNormal">First time poster here, so hello - and thanks in advance for any insight and advice you can offer now and in the future.</p></div>
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<p class="MsoNormal">I've been working with Cisco equipment for a while now, but have never touched on the VoIP field - however I now have a specific interest which I haven't been able to gather an answer to dispite my best Google-ing efforts.</p>
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<p class="MsoNormal">We've currently got a Nortel BCM 400 system, contected to PSTN via a ISDN30 with 20 channels. I'm looking to consolodate all our conectivity to a 10MB Fibre Leased Line from BT, and route our calls over this connection using SIP either directly to BT, or to an alternative provider, such as Gradwell. However.... our BCM maintenance company won't support SIP directly on the BCM. Apparently, although the BCM will do SIP Nortel won't support it and so it'll leave the Maintenance guys exposed should problems arise. Changing the PBX isn't an option.</p>
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<p class="MsoNormal"> </p></div>
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<p class="MsoNormal">Therefore, I'm looking into the possibilty of using one of our Cisco 2821 routers to act as a SIP gateway. It'll provide the BCM with a ISDN 30 PRI, in much the same way as it gets now to remove the Nortel support problems. The other side will be SIP down the 10Mb line to our call provider. And hopefully, some magic will happen in the middle on the 2821 to make this all work "seemlessly"....</p>
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<p class="MsoNormal"> </p></div>
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<p class="MsoNormal">Couple of questions really - 1) is it possible, & 2) if it is, can anyone point me in the direction of the recommended reading so I can enlighten myself futher?</p></div>
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<p class="MsoNormal">I really appreciate any help.</p></div>
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<p class="MsoNormal">Thanks,</p></div>
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<p class="MsoNormal">Rupes</p></div></div></div></div></div></blockquote></div><br>