<div>Hi Ryan,</div>
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<div>Yes, I've tried to use IOS MGCP gateway and it worked. But it will occupy the channel between GW-PBX. For example, extension 1315 & 1316 are PBX analog phone, if I transfer all calls from PBX to GW and then to CCM for call routing, even those 2 extensions will occupy the channel for in/out calls. Unless I configure all the analog extensions in PBX and forward others to GW. However, it'll cause other issues such as when I dialing 1315xxxx for off-net call, the PBX will treat it as 1315 extension. Because the PBX can be upgraded to IP-based, so I was wondering is there any solution like SIP-trunk can solve the issue. Thanks a lot ~
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<div>Regards,</div>
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<div>Alan<br><br> </div>
<div><span class="gmail_quote">2006/6/23, Ryan Ratliff <<a href="mailto:rratliff@cisco.com">rratliff@cisco.com</a>>:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Basically you'll need some type of voice gateway to receive calls<br>from the PBX (via PRI or other physical link) and send them to the
<br>CM. Once the call hits the CM it gets routed normally to a phone,<br>route pattern, etc.<br><br>-Ryan<br><br>On Jun 22, 2006, at 1:24 PM, Alan Su wrote:<br><br>Dear All,<br><br>I have a question about the PBX interoperability with CCM. What can I
<br>do to make CCM to handle all the call routing even for the PBX end-<br>phone?<br>One of the solution I heard about is to use SIP trunk connecting with<br>CCM & PBX, but I'm not quite sure how to do that. Any suggestion or
<br>comment would be very grateful. Thanks.<br><br><br>Regards,<br><br>Alan<br>_______________________________________________<br>cisco-voip mailing list<br><a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net
</a><br><a href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a><br><br></blockquote></div><br>