Does CallManager 7.1 support RFC 3856 SIP presence on third party SIP phones?I have some Polycom phones I am trying to get the BLF working, and they use the RFC for the BLF. Thanks,Pat

I am testing a few third party SIP phones on my 7.1 CallManager cluster.  I am able to make and receive calls.  The only issue I am having is when I put a call on hold on the SIP phones I don't get any music on hold on the phone that is put on hold. ...

I am trying to set up come Cisco phones using SIP to connect to a proxy server for remote access so I don't have to open my Call Manager to the internet.I have a couple of phones registered with SIP s the protocol, but they are not trying to connect ...

I have a 6.1 cluster and I would like to add some background images for a few phones.Is there a way to limit those images to only certain phones? Not certain models of phones, but only a few phones?

I have recently installed CM 6.1 in a VMWare environment for testing. The install went smoothly, but I am having issues now.There are several services that will start, but then they shut down after less than a minute, including the Call Manager and ...