Collaboration Knowledge Base

Don't you just hate having to run RTMT in a virtual machine, well here it runs in an app for mac. I have complied a version for CUCM 14.x ( from a version I got for 11.x ) It works on older versions also. Here it is https://haffi.is/rtmtmac14.zip old...

  SIP traces provide key information in troubleshooting SIP Trunks, SIP endpoints and other SIP related issues. Even though these traces are in clear text, these texts can be gibberish unless you understand fully what they mean. This document attempt...

# Migration from Unrestricted to Restricted CUCM Version #Migration from the Unrestricted version to the Restricted version is NOT SUPPORTED.After you install or upgrade to an Unrestricted release, you can never upgrade to a Restricted version.You ar...

                                                        * 8 Apr 2025 : added link to latest CL deck (Amsterdam 2025)                                                       * 14 Feb 2025: added 4 new features that went live today                       ...

OverviewWhat is CDR, CMR ?Logging Calls With Zero DurationConfigurationEnabling CDREnabling CMREnterprise ParametersArchitectureServicesCallManagerCDR AgentCDR Repository ManagerCAR SchedulerCAR Web ServiceSOAP - CDRonDemand ServiceHow CDR flat files...

SymptomsCannot share content using original CISCO USB-C cable? Prod.#: CAB-USBC-AC-9M= Diagnosisthe 9m cable has a specific direction. Pls. check the plugs of the cable: one end says PC; the other end says CODECUnfortunately nothing else warns the us...

Introduction: This document describes solutions to some common digital signal processor (DSP) related issues and ways to determine if the issue is hardware related or not. DSP is a part of the PVDM card. So, let's start by defining a PVDM. A Packet...

The following is an example of how to setup call blocking based off of incoming Caller's ANI. In this example, my voice environment consist of an 8.6 CUCM Pub with 3 Subscribers.  I have three Cisco 2911 H.323 voice gateways with 1 PRI in each. I put...

In this short article I show how can you set or change your Voicemail PIN either if you are using an IP Phone, Jabber or Webex with UCM Calling.   Log in to this URL from your browser while you are on your corporate network: http://<Cisco Unity Conn...

IntroductionPrerequisitesCall Flow ExamplesSIP TroubleshootingUnderstanding SIP TracesRelated Information  Introduction This document explains the basic SIP Call flow between the PBX, Gateways and SIP Phones in detail. Idea of creating this document ...

Before looking at the details of the different protocols and standards, it is important to understand why they are needed. ICE, STUN, and TURN are used to establish a MEDIA connection between two devices on different networks separated by firewalls ...

The Spint Brain Recovery condition in Unity Connections is an odd state to find your Unity Connections cluster in, for sure. One thing is certain though, 'something' happened, and this is the result of whatever that 'something' was or is. When this ...

                                                                             * Oct 2024 : added ''Webex Foundations - Power user learning plan'' user training                                                                             * Oct 2024: ad...

Caller ID name is sent by your telco (if you pay for the service) and this capability does not exist within CallManager. If the carrier/telco is sending the caller ID name,  it will be displayed on the IP phones.However, if you are using H323 gatewa...

CUCM DB Replication Troubleshoot – Things to Verify CUCM uses Informix as its database and its copy is spread across the nodes in a full mesh topology. Understanding the concepts and diagnosing the issue is a bit of a challenge. This document is an ...