I have various h323 Polycom video endpoints at remote locations around Europe which will be registered to a CUCM (v7.1) in London. I also have Cisco phones with VT Advantage registered to the same cluster in London. Between the phones in London and the Video endpoints are Checkpoint Firewalls which I need to create policies on to allow the traffic. To do this it would I need to understand the flow of data when the phone calls the video and endpoint and vice versa.
I have an idea of the call flow, but can someone please confirm if this is correct?
Phone ----> Polycom H323 Video endpoint
Phone dials Polycom
SCCP signalling takes place between phone and CM
CM signals polycom for call setup, alerting etc. via H225
RTP stream is established directly between endpoints
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The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
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Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...