I think it might be possible to get close to this if you route the video feed of the second camera into the Data connection for the PC.
Although we haven't done this with an SX80, we do have most of our studios connected up like this and route the cameras and PC (and other peripherals) into a matrix, then feed the outputs of the matrix into the inputs on the CODEC. In this way, we can (if we want) send pretty much any source to any input, thus can have multiple cameras showing at once - one on the main stream, and another on the secondary H.239 stream.
What is more difficult is to send both camera feeds AND the PC at the same time, as you only have two video streams available. To do this, you will need some kind of compositor to merge the feeds into one prior to sending them to the CODEC.
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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
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
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 ...