Only one publisher server is allowed in the cluster
. The publisher houses the read/write copy of the database. Up to eight subscriber servers can be in the cluster, with the restriction that only four of the subscriber servers can perform active call processing.
Is Cisco CUCM a PBX?
Cisco’s Unified
Communications Manager
(Cisco UCM) is an IP-based communications system that supports voice, conferencing, video, data, instant messaging and mobility services. … Cisco also offers the much smaller Cisco Call Manager Express (Cisco UCME) IP PBX service, which is targeted for small and medium businesses.
What is Cucm publisher and subscriber?
Publisher server is
the read/write version of the database
, where you do all your configurations and make changes. Changes are replicated to other servers in the cluster. Subscriber server is the READ only version of database, you can not do configurations here (other than some user facing configs).
What is CUCM clustering and its types?
–> A CUCM Cluster is a
group of CUCM servers running
the same version of CUCM that share the same database and resources to provide high availability of services for clients, transparent sharing of resources, features and enables system scalability.
What are the license types on CUCM?
Cisco Unified Workspace Licensing is
available in Professional Edition
and Standard Edition. Cisco User Connect Licensing (UCL) : It is a user-based license and these licenses are based on per user . UCL is available in Essential, Basic, Enhanced, or Enhanced Plus.
What is the difference between publisher and subscriber?
The provider of the information is called a publisher . Publishers supply information about a subject without needing to know anything about the applications that are interested in the information. The
consumer of
the information is called a subscriber .
How many CUCM is a cluster?
A cluster consists of
one publisher and a total maximum of 20 servers
(nodes) running various services, including TFTP, media resources, conferencing, and call processing. You can have a maximum of eight nodes for call processing (running the Cisco CallManager service).
What is Cisco Call Manager?
CallManager is
the call-processing component of the Cisco Unified Communications System
. Cisco Unified CallManager extends enterprise telephony features and capabilities to packet telephony network devices such as IP phones, media processing devices, voice-over-IP ( VoIP ) gateways, and multimedia applications.
What is the difference between PBX and PABX?
The difference between a PBX and PABX is quite simple. A PBX is a “ private branch exchange,” while
a PABX is
a “ private automatic branch exchange.” The only difference is the word “automatic.” … Originally, a PBX required switchboard operators to connect internal callers to other lines.
What is a PBX VoIP?
A Voice over Internet Protocol (VoIP) private box exchange (PBX) is
a business telephone system that provides services similar to a standard PBX
, but does so over a company’s LAN or WAN data network rather than through the circuit-switched networks used by the traditional Public Switched Telephone Network (PSTN).
Which CUCM server is the License Manager component active on?
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.
What is VoIP clustering?
A VoIP cluster is
a set of IP PBXs (Internet Protocol Public Branch Exchanges or Session Initiation Protocol (SIP) servers) that are connected to each other
. These servers individually are the centres of a unique communication system, but by the connection of them, a greater system can be created.
What is bat in case of CUCM?
The
Cisco Unified Communications Manager Bulk Administration Tool
(BAT), a web-based application, performs bulk transactions to the Cisco Unified Communications Manager database. BAT lets you add, update, or delete a large number of similar phones, users, or ports at the same time.
What is Cisco CUWL license?
CUWL premium license
covers IM/Presence and call control for up to six phones
of any model including Jabber Mobile Client. CUWL Professional. CUWL standard license covers IM/Presence and call control for up to ten phones of any model including Jabber Mobile Client. Telepresence Room.
How does Cucm licensing work?
Licensing Terminology
Device license units are
assigned to each device that is connected to
Cisco Unified Communications Manager. Each device is assigned a unit number based on the type and capabilities of the device. Devices with more complex and high-end capabilities are assigned a higher number of units.
