Cisco Webex Control Hub is a cloud-based management platform that enables you to provision, administer, and manage Webex services and Webex Hybrid Services. It provides a single pane of glass for managing all of your Webex services, including Webex Meetings, Webex Teams, and Webex Calling.

Webex Control Hub offers a number of features and benefits, including:

A single pane of glass for managing all of your Webex services

Centralized user management

Simplified provisioning and administration

Real-time analytics and reporting

Enhanced security and compliance

Webex Control Hub is a powerful tool that can help you manage your Webex services more effectively. It is easy to use and provides a number of features and benefits that can help you improve your productivity and efficiency.

LLDP (Link Layer Discovery Protocol) is a vendor-neutral network discovery protocol that is used to discover the topology of a network. LLDP is similar to CDP (Cisco Discovery Protocol), but it is not proprietary to Cisco. LLDP is supported by a wide range of network devices, including switches, routers, and firewalls.

To configure LLDP on a network, you must enable LLDP on the devices that you want to discover. You can then use a network management tool, such as Cisco Network Assistant, to view the topology of the network.

The other options are incorrect. TFTP (Trivial File Transfer Protocol) is a network protocol that is used to transfer files between devices. LACP (Link Aggregation Control Protocol) is a network protocol that is used to aggregate multiple network links into a single logical link. SNMP (Simple Network Management Protocol) is a network protocol that is used to manage network devices.

When deploying co-resident VMs by using Cisco UCM, it is important to avoid hardware oversubscription. This means that you should not assign more resources to the VMs than the physical hardware can provide. For example, if you have a server with 16 CPU cores, you should not assign more than 16 CPU cores to the VMs.

If you oversubscribe the hardware, the VMs will not be able to get the resources they need to run properly. This can lead to performance problems and even outages.

To avoid hardware oversubscription, you should carefully plan your VM deployments. You should also monitor the performance of the VMs to make sure that they are not overusing the resources.

Here are some additional tips for deploying co-resident VMs by using Cisco UCM:

Use a virtualization platform that supports Cisco UCM.

Make sure that the VMs have the correct operating system and software installed.

Configure the VMs to use the correct network settings.

Monitor the performance of the VMs to make sure that they are running properly.

Cisco IP Phone 7800 Series devices support remote command-line access through SSH , but this access is disabled by default in Cisco Unified Communications Manager (CUCM). When an engineer is unable to reach the phone’s command line while the device is otherwise reachable via ICMP/HTTP and registered to CUCM, the most common cause is that SSH is not enabled or the required credentials have not been configured .

Within the Phone Configuration → Product Specific Configuration Layout , CUCM provides administrative controls for remote access capabilities. The “SSH Access” parameter in this menu explicitly controls whether the phone will accept SSH connections; this must be enabled for any CLI access to function. In addition, CUCM requires the configuration of SSH username and password under the Secure Shell Information section. These credentials are then provisioned to the phone through its configuration file. If SSH is enabled but no credentials are defined, the phone will reject the connection even if TCP/22 is open.

Other listed options (such as disabling Web Access, enabling Settings Access, or turning on FIPS mode) do not impact SSH functionality. Web Access controls HTTP/HTTPS availability, Settings Access controls local phone menu access, and FIPS mode enforces cryptographic compliance but does not enable SSH by itself.

Therefore, the two actions that resolve the issue are:

Enabling SSH Access in the Product Specific Configuration Layout

Configuring SSH username and password under Secure Shell Information

These steps ensure the phone downloads updated configuration files, activates SSH, and allows authenticated remote CLI access—fully aligned with Cisco’s standard operational behavior for 7800 Series endpoints.