I am bit new to this video infrastructure , can anyone help me with or is there is any guide states how to register the Endpoints on VCS, VCS-E and CUCM. thanks in advance and appreciated.
In case you are planning the endpoints to registers via MRA, you can refer this guide : https://www.cisco.com/c/dam/en/us/td/docs/telepresence/infrastructure/vcs/config_guide/X8-9/Mobile-Remote-Access-via-VCS-Deployment-Guide-X8-9.pdf
If using VCS only, you can refer this VCS admin guide : https://www.cisco.com/c/dam/en/us/td/docs/telepresence/infrastructure/vcs/admin_guide/Cisco-VCS-Administrator-Guide-X8-9-2.pdf
In case of administering endpoint via CUCM ; you can have a look at this : https://www.cisco.com/c/dam/en/us/td/docs/telepresence/endpoint/ce80/administerting-endpoints-running-ce80-on-ucm-1101.pdf
**These guides are specific to software versions and can have few changes for different versions. Check the running software of your Endpoints, VCS-C & E and CUCM and you can find similar guides for those versions.
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In addition to the information Rishabh has provided, I don't know what state your CUCM and VCS is in, but recommend you take a look at the following guides as well.
To register an endpoint to VCS-C/E:
To register an endpoint to CUCM:
To allow CUCM registered endpoints to dial VCS registered endpoints or for external B2B calls: