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What Is Cisco Unified Communications Manager?

It is very important that communication be effective and secure in the business world. Sharing the information in the right place at the right time facilitates the distribution of business processes. Some database services provide error-free management of IP phones and call decisions. With the given configuration commands, the nature of the communication is preserved and is not broken. The Linux-based communication server supported by Cisco Systems that maps IP numbers to phone numbers and integrates voice, video, data and mobile applications is called Cisco Unified Communications (CUCM) or Cisco Call Manager (CCM).

It doesn’t allow sharing unnecessary files on the server with TFTP (Junk File Transfer Protocol). A CUCM cluster can have a maximum of 20 servers, while only one publisher server is allowed in the cluster. The publisher contains the information in the database. Up to eight subscriber servers can be in the same cluster, as only four of the subscriber servers can perform active calls. If more than four subscriber servers are used in a cluster, the additional servers are being dedicated as backup servers in case the active subscriber server is unavailable. The other 11 servers in the cluster may be responsible for a variety of services, including TFTP and media resources. It consists of a CUCM license, license server and license manager. While the license server component runs only on the publisher server, the license manager runs on each server.

After connecting an Ethernet cable to an IP phone, the procedures are as follows:

  1. IP phone requests IP to DHCP servers on the network.

  2. DHCP server transmits the phone IP and the IP address of the TFTP server.

  3. Since the TFTP server is directly connected to the Communications Manager, the IP address of the server directly becomes the Manager. Thus, it will automatically register to the Manager along with the phone number.

  4. The phone is now available. If the TFTP IP provided by the DHCP server doesn’t belong to the Call Manager (if it is not set), the IP address of the Communications Manager must be manually entered into the phone.

Features of Cisco Unified Communications Manager

Smart Options Prepared For You: It gives call centers the option to use commands such as "do not disturb", "intercom communication", "call recording", "stand on line" in necessary scenarios.

Multimedia: Audio and video content can be supported and easily added.

Advanced Phones: Cisco Unified Communications Manager is compatible with the latest phone technologies, including IP phones and innovative applications running on them.

Wireless Communication: Allows employees to switch to a wireless data network without losing their connection.

Easy Installation: Preset configurations can be created, which can be easily replicated to speed up setup time.

It has various features such as call forwarding and "contact me" option, support for a wide range of phones, security for unexpected conference calls, conference, call center and customized voice answering systems.

It is possible to install CUCM which is a powerful call processing component with different methods in accordance with your own security policy. With the continuous update versions, errors are fixed, the database is developed and serves us better.

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