<div>Hi Ryan,</div>
<div> </div>
<div>Many thanks for your sharing, I'll check if the PBX can act as H.323 GW or not. ^^</div>
<div> </div>
<div> </div>
<div>Regards/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">I've no experience with a sip trunk to a PBX I'm afraid.<br><br>I have seen some PBXs that could act as an
H.323 gateway to CM. IIRC<br>the only trick was to make sure "MTP Required" was set due to H.323<br>version issues.<br><br>-Ryan<br><br>On Jun 22, 2006, at 1:48 PM, Alan Su wrote:<br><br>Hi Ryan,<br><br>Yes, I've tried to use IOS MGCP gateway and it worked. But it will
<br>occupy the channel between GW-PBX. For example, extension 1315 & 1316<br>are PBX analog phone, if I transfer all calls from PBX to GW and then<br>to CCM for call routing, even those 2 extensions will occupy the<br>
channel for in/out calls. Unless I configure all the analog<br>extensions in PBX and forward others to GW. However, it'll cause<br>other issues such as when I dialing 1315xxxx for off-net call, the<br>PBX will treat it as 1315 extension. Because the PBX can be upgraded
<br>to IP-based, so I was wondering is there any solution like SIP-trunk<br>can solve the issue. Thanks a lot ~<br><br><br>Regards,<br><br>Alan<br><br><br>2006/6/23, Ryan Ratliff <<a href="mailto:rratliff@cisco.com">rratliff@cisco.com
</a>>: Basically you'll need<br>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><br><br></blockquote></div><br>