PUB = Publisher. SUB = Subscriber. In simple terms, think of the Publisher as the manager of the CUCM cluster.
How to add a subscriber to the Publisher Database?
Step 1 Add the subscriber to the publisher database using CUCM Administration. Step 2 During installation of the subscriber, enter the same database security password that was entered during installation of the publisher.
How do I restore a deleted subscriber dB from cucm911ccnapub?
Publisher Restore from the Subscriber DB. Check the publisher node check box ( CUCM911CCNAPUB ), and choose the subscriber DB from which the restoration takes place. Then, click Restore.
What is a CUCM server?
CUCM servers are preinstalled with all software that is required to operate, maintain, secure, and manage a server or cluster of servers (including Cisco Security Agent). CUCM is also provided as a software-only product, which may be installed on supported Cisco Media Convergence Servers (MCS) or Cisco-approved third-party server platforms.
How do I recover a lost publisher node in CUCM?
In early versions of CUCM, the publisher node was regarded as the only authoritative source for the Structured Query Language (SQL) DB. Consequently, if a publisher node was lost due to a hardware failure or a file system corruption, the only way to recover it was to reinstall and restore the DB from a Disaster Recovery System (DRS) backup.
What is a publisher in a cluster?
What is subscriber in SQL?
What is CUCM roaming?
About this website
What is publisher in Call Manager?
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.
How do I add a subscriber to CUCM publisher?
0:1412:25Add a Call Manager Subscriber to a cluster CUCM 12.5 - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd there's our publisher right there and i'm going to add a new one cucm voice and video click nextMoreAnd there's our publisher right there and i'm going to add a new one cucm voice and video click next. And then i'm going to go by ip address my publisher is 10.0. 0.10. So i'm going to go 10.0.
What happens when CUCM publisher goes down?
The Cisco CallManager Service cannot be enabled on a server if the publisher is not available because the publisher acts as a licensing server and distributes the licenses needed to activate the Cisco CallManager Service. Once this service is enabled, the server is able to perform call processing functions.
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.
How many nodes are in CUCM 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 call pickup group in CUCM?
• Call pickup allows users to pick up incoming calls within their own group. Cisco CallManager automatically dials the appropriate call pickup group number when a user activates this feature on a phone. • Group call pickup allows users to pick up incoming calls within their own group or in other groups.
How do I restore CUCM publisher?
Complete these steps:Login to the CUCM with your credentials.Start your Linux box.From Communications Manager Administration page, go to Navigation> Disaster Recovery System page and click the Go button. ... From the menu, select Backup > Backup Device.Click Add New.Type in a name Share in the Backup Device Name field.More items...
What is MTP in CUCM?
A Media Termination Point (MTP) software device allows Cisco CallManager to relay calls that are routed through SIP or H. 323 endpoints or gateways. You can allocate a media termination point device because of DTMF or RSVP requirements. This is invoked by the Ip Voice Media Streaming Application Service.
How does CUCM sync NTP?
Go to CUCM administration page >> System >> Phone NTP reference >> Add New: Once you have that covered go to System >>Date/Time Group >> Choose your DTG >> Add Phone NTP reference: At this point you can add the new NTP server and remove any NTP servers you will no longer need.
What are the 3 types of cluster?
Types of ClusteringCentroid-based Clustering.Density-based Clustering.Distribution-based Clustering.Hierarchical Clustering.
What is CMR in CUCM?
The Call Detailed Records (CDR) and Call Management Records (CMR also called Call Diagnostics Records) offer granular level of details for each phone call processed by the Cisco Unified Communications Manager (CUCM). Unfortunately Cisco Unified (CM) CDR records and CMR records are disabled by default.
What is route pattern in CUCM?
A route pattern is a string of numbers that CUCM uses to determine where to route calls. For example, a simple route pattern could be a number like 812-555-4001. A route pattern has a route list associated with that route pattern.
What is publisher and subscriber in Cisco?
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).
How do I add an agent to UCCX?
how to add an agent to uccxadd an ipcc extension to the end user.on the agent phone page i add uccx service.i dont have to add anything on the uccx as it will detect the user automatically.
What are the various ways in which we can add users in CUCM?
There are four ways to add users to Cisco Unity Connection. Users can be added manually, by synching to a CUCM, by using LDAP, and finally by using the Bulk Administration Tool (BAT).
How do I upload MOH to CUCM?
CUCM Configure Custom Music On Hold MOH2.1 Upload the .wav file.2.2 Setup MOH Audio Source.2.3 Assign MOH to phone.2.4 Assign MOH to DN.
what is the different between publisher and subscriber in CCM
Hi all. Can any body tell me what is the different between publisher and subscriber in CCM – Cisco Call Manager – and what is the function for each one ?? because we have two servers One publisher and another one is subscribe till now I do not know what is the Function for each one of them ??
What is the difference between publisher-subscriber vs. server-client ...
I just completed the beginner tutorial and I do not understand the difference between the publisher-subscriber (PS) way of passing messages and the server-client (SC) way of passing messages. To me they seem like two ways of doing the same thing. If I understand correctly, with the PS method there is a queue. P pushes messages in the queue and S listens for messages coming from the queue.
Publisher and Subscriber - Cisco: Call Manager - Tek-Tips
Hi, Can someone verify if this is a problem or normal operation of the cisco callmanager. I have a Cisco Publisher 4.1 and Subscriber 4.1 When the IP phones are register to the subscriber, on the publisher i see them as not found.
Change CCM Subscriber to publisher - Cisco: Call Manager - Tek-Tips
It is a single cluster but I did not see anywhere in this post that we are reffering to a business edition. Since there is a sub already in the picture it would rule out this option in this case.
What is a publisher in a cluster?
The 'publisher' refers to the server that is the first node in the cluster, and contains the writeable copy of the config DB. The 'subscribers' are the second, and all other nodes which just contain a replicated copy of the DB (hence the publisher/subscriber name; they are references to SQL replication roles).
What is subscriber in SQL?
The 'subscribers' are the second, and all other nodes which just contain a replicated copy of the DB (hence the publisher/subscriber name; they are references to SQL replication roles).
What is CUCM roaming?
It’s a feature which allows CUCM to determine whether the phone is in its home location or a roaming station.By enabling this feature users can roam from one site to another site and acquire the site-specific settings such as Codecs, MRGL, Call rout... view more
What is CUCM version 8.6?
In CUCM Version 8.6 (1), a new feature was introduced in order to restore a publisher DB from a subscriber database. This document describes how to take advantage of this feature in order to successfully restore a publisher DB from the subscriber.
How to add name values to Publisher Server?
After you receive the node list, navigate to System > Server and add all of the name values other than EnterpriseWideData to the Publisher Server Unified CM Administration page. The name values must correspond to the Host Name/IP Address field on the System > Server menu.
Why is my cluster not authenticating?
If the cluster does not authenticate, the two most common causes are mismatched security passphrases and connectivity issues on TCP port 8500.
What happens after publisher restarts?
After the publisher restarts, if you made the changes correctly and the security passphrase is correct, the cluster should be in the authenticated state. In order to verify this, enter the show network cluster command:
What is publisher node?
In early versions of CUCM, the publisher node was regarded as the only authoritative source for the Structured Query Language (SQL) DB. Consequently, if a publisher node was lost due to a hardware failure or a file system corruption, the only way to recover it was to reinstall and restore the DB from a Disaster Recovery System (DRS) backup.
Which component is critical for publisher node?
Note: It is critical that the publisher node has the CCMDB component registered.
Can you use subscriber DB for restore?
Note: Although you can use the subscriber DB for the restore, a backup is still required in order to restore the non-DB components. If no backup is available, then perform a new one; if a backup already exists, then you can skip this section.
What is CUCM server?
CUCM servers are preinstalled with all software that is required to operate, maintain, secure, and manage a server or cluster of servers (including Cisco Security Agent).
Who places an order for CUCM?
The customer places an order for CUCM.
How does CUCM work?
CUCM responds to this stimulus by replying with a message that tells the device to play the dial tone file that is stored in the flash memory of the phone. The user at phone A hears the dial tone and begins dialing the phone number of phone B. SCCP phones send their digits to CUCM as they are pressed (digit by digit), whereas SIP phones send their dialed digits in one message (enbloc signaling) by default. SIP phones have options that allow them to behave similarly to SCCP phones (Keypad Markup Language [KPML] and dial rules). CUCM performs digit analysis against the dialed digits. If a match is found, CUCM routes the call per its configuration. If CUCM does not find a match, a reorder tone is sent to the calling party.
What is CUCM 6.0?
CUCM Release 6.0 is a complete hardware and software solution that works as a network appliance . A network appliance is a closed system that supports only Cisco-authorized applications and utilities. Goals of the appliance model are to simplify the installation and upgrade of the system and to hide the underlying operating system. An appliance-based model makes it possible for an administrator to install, implement, and manage a CUCM server without requiring knowledge of or having access to the underlying operating system.
What happens if CUCM does not find a match?
If CUCM does not find a match, a reorder tone is sent to the calling party. CUCM signals the calling party to initiate ringback, so the user at phone A will hear the ringback tone. CUCM also signals the call to the destination phone, which plays the ringdown tone.
How does Cisco UC change the bottom line?
Cisco UC can drastically change the bottom line of business by creating more effective communications without losing the personal nature of a face-to-face conversation. More effective communication leads to reduced time to market and nimble transformation of business processes through collaboration.
How many types of data are there in CUCM?
The data in the CUCM database is divided into two types, as described in the sections that follow.
What is pub sub model?
A pub/sub model allows messages to be broadcasted asynchronously across multiple sections of the applications.
Why is Pub/Sub not suitable?
Pub/sub is not suitable when dealing with media such as audio or video as they require smooth synchronous streaming between the host and the receiver. Because it does not support synchronous end-to-end communications, pub/sub messaging is ill-suited for:
What is Pub Sub?
Known as pub/sub, Publish/Subscribe messaging is an asynchronous service-to-service communication method used in serverless and microservices architectures. Basically, the Pub/Sub model involves:
What does simplicity of pub/sub mean?
The simplicity of the pub/sub pattern means that users can understand the flow of the application easily.
What happens to messages in Pub/Sub?
Whatever the message is in the Pub/Sub model, it will be automatically pushed to all the subscribers. The only exception is user-created policies for subscribers that will filter out messages.
Why is Pub/Sub important?
The pub/sub pattern also helps to easily understand the origin and destination of the data and the information flow. It is particularly helpful in testing issues related to:
Can you make periodic backups with multiple databases?
It’s essential to make backups with multiple databases spread across different technologies and vendors. We can configure periodic backups or snapshots using cron jobs.
What is Cisco Unified Communications Manager (CUCM)?
Cisco Unified Communications Manager (formerly Cisco CallManager, now known as Cisco Unified CM or CUCM) is an enterprise call and session management infrastructure that streamlines team communication and collaboration for today’s hybrid workforce.
Cisco UC Components
Cisco’s unified communications structure combines voice, video, and data traffic within a single network infrastructure.
Benefits of Cisco Unified Communications Manager
Cisco has provided IP communications services and applications since 1997, making it the longest tenured of any vendor.
Key CUCM Features
Let’s look at some of the key features Cisco Unified Communications Manager offers customers.
How to Buy and Integrate CUCM
A process called Cisco Smart Software Licensing lets customers purchase and manage licenses with the devices self-registering and reporting consumption.
Additional Unified Communications Providers
If Cisco Unified Communications Manager doesn’t seem like it suits your needs, consider one of the four UC platform alternatives listed below.
Cisco Unified Communications Manager FAQs
Below we answered some of the frequently asked questions about Cisco Unified Communications Manager.
What is CUCM server?
CUCM servers run network services (automatically activated) and feature services (activated by the administrator). After installation, network services should be checked, and desired feature services have to be activated.
Why not use DNS with CUCM?
Because of the additional point of failure introduced using DNS, the Cisco best practices recommendation is to not use DNS with CUCM.
What happens before a Cisco IP phone can communicate with a CUCM?
Before the IP phone can communicate with CUCM, it has to resolve the name of the server. Signaling messages are then exchanged between the Cisco IP Phone and CUCM, as illustrated in Figure 5-6.
Can a CUCM DHCP server be used in a 1000 device deployment?
NOTE Due to the CPU load impact, CUCM DHCP server must not be used in deployments larger than 1000 registered devices. The CPU load of the server can be monitored using the Real-Time Monitoring Tool (RTMT). If high CPU load is experienced, the DHCP service should be provided by other devices (DHCP server, switch, or router). RTMT is covered in Cisco Unified Communications IP Telephony, Part 2.
What is a publisher in a cluster?
The 'publisher' refers to the server that is the first node in the cluster, and contains the writeable copy of the config DB. The 'subscribers' are the second, and all other nodes which just contain a replicated copy of the DB (hence the publisher/subscriber name; they are references to SQL replication roles).
What is subscriber in SQL?
The 'subscribers' are the second, and all other nodes which just contain a replicated copy of the DB (hence the publisher/subscriber name; they are references to SQL replication roles).
What is CUCM roaming?
It’s a feature which allows CUCM to determine whether the phone is in its home location or a roaming station.By enabling this feature users can roam from one site to another site and acquire the site-specific settings such as Codecs, MRGL, Call rout... view more
