As Microsoft Teams does not use SIP for their meeting services there isn’t anything as such to dial. To have something dialable you need to have a CVI service added on top of your Teams service. Natively Teams uses WebRTC for its meeting service, with the newer models of Cisco video equipment you can use that protocol to connect the device to the meeting, however there are some caveats and limitations with this. All this is well documented and is not limited to pure cloud registration. It works for cloud aware on-prem registered devices as well.
As mentioned earlier you’ll need to add a Cloud Video Interop (CVI) service to your Microsoft tenant as there is no native support for SIP in the Microsoft platform. There are multiple vendors that provides this type of service. Google CVI and Teams and I’m sure you’ll find what you need.
You don't need to register any devices to the cloud for this. Please read the documentation on this topic, it is very well outlined in it. For your ease I looked up the document and linked to it.
Deploy the Webex video integration for Microsoft Teams
To be clear this is Cisco's variant for CVI, as mentioned earlier there are multiple others, like Pexip. It's up to you do decide what CVI option fits your needs the best.
If you read that once more you'll see that the requirement for linking the on-prem devices are for Hybrid Calendar to work so that you can get OBTP join button to show up five minutes before the meeting starts to get an easier and nicer join experience. If you don't want or need that you can forgo that part if you don't want to link your on-prem devices to make them cloud aware.
The domain part is also clearly shown in the document.
Further more you don't need to have an Webex org for this, you can use any of the other CVI ventor options that are available. With a minimum of effort on you end and a browser pointed to a search engine I'm sure that you will find the other options there are for this. You can't expect that the community should do all the work for you, after all we are not paid for doing this and some effort on your part would be expected.
Sorry I won't go further on this. You have all information in the document. If you still cannot grasp it please reach out to a reputable Cisco partner for help with this.
Sorry if I didn’t explain it well enough earlier. There are available documentation for what you ask about and with a little more effort I’m certain that you can find it. I don’t have it readily available at the moment, so I can’t share it with you.
The options there are are these
- You add a CVI integration for your MS service. This is to get a SIP service that runs on top of your MS Teams meeting service. There are a few different options for this, for example Pexip or Cisco
- On the newer models of Cisco equipment, all Room kits and onwards, you can use WebRTP to connect with the MS Teams meeting. For CM registrations this requires that the endpoints are made cloud aware with Webex Edge for devices
Yes if the other companies has a CVI (Cloud Video Interop) service setup on their MS tenant, to get a SIP uri to dial to join the meeting, otherwise no as these two models does not have the capability to do WebRTC.
