Today when i was migrating a 10.5 UC cluster to 14 during the CUCM subscriber migration after network validation, i saw a warning message on the screen.. “Critical Error” “The installation has encountered a unrecoverable internal error. For further assistance report the following information to your support provider. Unrestricted string is empty The system will…

Still many engineers are not aware about Cisco’s Prime collaboration Deployment and many hesitate to use it. From my experience its an awesome tool when upgrade/migrate UC application. PCD can also be used for UC backups(refer my previous blog https://defaultgateway.org/2021/02/06/cucm-backup-using-pcd-as-a-sftp-server/). When using PCD, always read the admin guide corresponding to your version. The below tables…

Its not a common scenario, but for atleast one or two customer you might have faced failed cluster discovery due to login. Two possible scenarios, Cluster nodes use different Administration password Cluster node with different Administration username/password In the first scenario, each node is set with different administration password. For such scenarios change the admin…

This blog describes how to use Prime Collaboration Deployment (PCD) as a Secure File Transfer Protocol (SFTP) server in order to provide a remote server option for tasks such as upgrades, backups and restores. Requirements Cisco recommends that you have knowledge of: Cisco Unified Communications Manager (CUCM) version 11.5(1) or later PCD version 11.6(2) or…

Last week i had a migration from 8.X to 12.5.With PCD, the migrations was smooth. Planning migration is important. Before upgrading its mandatory to read below documents. In this topic i cover the supported Release Matrix. Upgrade and Migration Guide Release Notes Ream Me Cisco Prime Collaboration Deployment Administration Guide CUCM CUC IM UCCX