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Home > Archive > Voice over IP Cisco > December 2005 > CME to CM 4.1 Conference Call info
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CME to CM 4.1 Conference Call info
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| Bob A. Bowie 2005-12-01, 2:45 am |
| I have CME and CM4.1 installed. When I create a conference from a CME IP Phone to other CME phones and CM IP Phones,
it works correctly. However, when I conference from CM IP phones and conference in CME IP Phones, it connects, then immediately
drops the entire call and says "can not join calls". Is there something onCall Manager I need to enable? I am only using 2 CME phones and 1 CM IP Phone.
Thanks
----- Original Message -----
From: Kevin Thorngren
To: Bob A. Bowie
Cc: cisco-voip@puck.nether.net
Sent: Wednesday, November 30, 2005 11:01 AM
Subject: Re: [cisco-voip] CME to CM 4.1 SCCP Call info
Hi Bob,
Yes, that is the expected behavior. A call between two phones on the same CME will have RTP streams directly between the two phones. If the call is to another destination through the CME then the CME is used as an MTP device for the call.
Kevin
On Nov 30, 2005, at 12:51 AM, Bob A. Bowie wrote:
Hello, I have a remote site with CME 3.3 and my Call Manager Cluster 4.1.3 configured as H323 trunk
through the WAN. I have a question about call setup, as I am viewing the CME side with a packet analyzer,
I see the CM IP phone stream to the CME router, and the CME router to the CME IP Phone.
QUestion: since these are both sccp phones on a WAN, I thought the media stream should be direct, once
call setup is completed? Is what I am seeing correct?
Tx
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| Kevin Thorngren 2005-12-01, 8:45 pm |
| Hi Bob,
Did you select the "MTP Required" option on the H.323 Trunk in CCM?
If not then please read this URL for more information:
http://www.cisco.com/en/US/products/sw/voicesw/ps556/
products_implementation_design_guide_cha
pter09186a008044751b.html#wp1045
089
Kevin
On Dec 1, 2005, at 1:33 AM, Bob A. Bowie wrote:
[vbcol=seagreen]
> I have CME and CM4.1 installed._ When I create a conference from a CME
> IP Phone to other CME phones and CM IP Phones,
> it works correctly._ However, when I conference from CM IP phones and
> conference in CME IP Phones, it connects, then immediately
> drops the entire call and says "can not join calls"._ Is there
> something onCall Manager I need to enable?_ I am only using 2 CME
> phones and 1 CM IP Phone.
> _
> Thanks
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