Introduction After-Hours Configuration Examples Verifying Call Blocking Configuration Related Information IntroductionThis document covers the Configuration steps to Implement After-Hours Call blocking on Cisco Unified Communications Manager Expres...
Knowledge Base Articles
Collab Solutions Analyzer (CSA, https://cway.cisco.com/csa-new/) is a powerful tool that is used for onprem solution troubleshooting (CUCM, Expressway, etc.).But lately, CSA tool has added a new capability related to Webex Calling local gateway (LG...
SummaryUCCX 15 upgrades are not the upgrade binary's fault when they fail. Ten specific operational gaps account for nearly every upgrade that slips its change window or leaves services broken post-switch. This article documents each landmine, the ob...
SIP Cause Code 96 is one of the most common inter-working cause codes observed on CUCM-to-CUBE trunks, and also one of the most misleading. It does not tell you what went wrong - it tells you that something one side expected in a message was missing ...
SummaryCUCM Mixed Mode is not a single switch. Enabling it at the cluster level does not automatically secure every layer of the UC stack. This article walks the ten verification points that determine whether Mixed Mode is actually protecting your en...
Most Cisco UC environments I walk into have some segments of their voice network encrypted and others wide open. The SIP trunk to Unity Connection might be TLS, but the voice gateway talking to the carrier is unencrypted UDP/5060 and RTP. Or the pho...
hi all, as we describe in other community posts (Evolution paths for CUCM customers - a brief high level view), one way to enhance your CUCM service, is to replace Jabber with Webex (for softclient services). In these scenarios, Webex app registers t...
Advanced CUCM SQL queries for bulk update and delete operations Summary Prerequisite SQL Queries Update CSS Update Device Pool Update Partition for DN and URI Regex in SQL Queries Update description in device DN’s Update Line Text Label in DN’s Updat...
hi all, this is a lab I created in November 2025 for partner workshops (but can also be useful for customer admins). This lab covers both :a) basic config elementsFit for people that have limited Webex Calling and Customer Assist hands on experience...
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 a...
Cisco Unity Connection Cluster Operation and Troubleshooting Introduction UC Failover in Operation Cluster Status SRM Traces Split-brain Recovery (SBR) Other Conditions Cisco Unity Connection Cluster Operation and Troubleshooting This documen...
Upgrading UC nodes one by one is a thing of the past. Prime Collaboration Deployment (PCD) is the best tool for upgrades, allowing you to upgrade the cluster and switch versions from the same place. I’m a big fan of PCD. However, I believe Cisco is m...
There are only a handful of Cisco recommended SFTP servers for UC application backups. One of them is Open SSH. This document explains how to install a SSH server based on Open SSH. The proxy / relay function is optional. Solution Description The s...
Overview Types of Certificates CUCM/CUC/CUPS/UCCX Versions 10.X and Later - Certificate Regeneration Common certificates Tomcat Certificate CallManager Certificate IPSEC Certificate ITLRecovery Certificate CUCM specific certificate CAPF Certificate T...
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