Join Meetings from Video Systems without Host PINs or Keys
You can ensure that only the cloud-registered and on-premises video systems in your organization can join your Webex meetings without the need for PINs and keys. For more information on joining a Webex meeting from a standards-based video system, see Use the Join Webex Button on a Video Device to Join Webex Meetings.
Follow the relevant sections as listed below:
Administrators
If you're a Webex site administrator, follow these steps:
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          Check Allow Users to Host Meetings from a Video Conferencing System Without a PIN in Cisco Webex Control Hub and Webex Site Administration. 
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          You can also make templates available on your site by configuring them in Control Hub and Site Administration. 
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          If your standards-based video systems use the Session Initiation Protocol (SIP), follow these steps: - 
              Complete the domain verification process as described in Domain Verification Process for SIP Video Conferencing Systems. 
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              Make sure that you configure your enterprise edge ( Cisco Expressway-E) with a mTLS certificate with a Subject Alternative Name field that contains your SIP video domain, such as, example.com.
 
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End Users
If you are a user who wants to allow alternate hosts to join meetings from a standards-based video system, follow these steps:- To create and save a template for joining meetings without a PIN, see Create and Save a Template for Joining Meetings without a PIN. 
- To allow others to start your Personal Room meetings from a video system without a PIN, see Allow Others to Start My Personal Room Meetings from a Video Device without a PIN.