In my experience it should be the same, and only use what it should, but it's been awhile since we used permanent conferences directly on the MCU. Can you tell us a bit more about how your MCU is configured and the conferences you're trying to create, even screenshots might help.
The MCU5320 is configured for SIP only and registers to VCS-C.
New conferences are created on TMS (via TMSXE).
I monitored on a MC5310 running v4.4 and there the number of participants correctly reflects the number of video ports in use, eg 3 participants uses 3 video ports.
I monitored on the new 5320 with v4.5 and there I see always 1 extra port in use when a conference is started, eg 3 participants shows 4 video ports in use.
We have a MCU5310 with a 4 SD ports license configured for HD. So normally 2 video ports can be used. I start the conference with 1 participant when the 2nd participant is added the it enters a audio port and the MCU status windows tells me no video ports are available anymore.
I currently have no access to the MCU so I cannot provide screen shots.
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
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