ISSU is an upgrade from one image to another while the traffic flow. ISSU was released on version 17.1.X as beta and in production from version 17.3. Issu Eliminates network Downtime during the controller upgrade. Automate the process of upgrade without manual interventions. Prerequisites of ISSU upgrade ISSU Process Rolling AP upgrade its a new…
Push Notification Service Enhancement
The new Push Notification Architecture standardize with Webex Cloud. The updated enhancement require CUCM 15 or CUCM 12.5Su8 which still not released. New Architecture Current Architecture
Expressway SIP device Registration request was being rejected with Reason Registration mode not enabled
If you use expressway for device registration by default this is ON. But enabling the Smart licensing turns OFF the registration mode on Expressway. We must enable the Registration Mode manually .
Omantel SIP trunk Configuration
Omantel use Pure in band DTMF with RFC 2833 disabled. We need to use LTI Transcoder on the CUBE to make this working. In this blog i have shared a working CUBE configurations for omantel SIP trunks
Recommended Cabling for DNA Appliance
Recommended Cabling for 44 and 56-Core Appliance Recommended Cabling for 112-Core Appliance
Webex Cloud Connected UC
Cloud Connected UC is a global view of our on-prem UC from Control Hub.It provides a centralized cloud-based tool for analytics and troubleshooting. Before you begin Ensure that your network firewalls and proxies allow access to the following URLs: Activate Webex Cloud Connected UC For Unified CM 12.5 SU4 or higher versions, you can onboard…
Air play and Miracast on Webex devices
Webex devices support Airplay and Miracast. Airplay To share screen Wirelessly connect your iPhone, iPad, or Mac to webex devices Network requirements To allow for wireless sharing with AirPlay, either: Port TCP or UDP Service or protocol name Service name Used by 80 TCP Hypertext Transfer Protocol (HTTP) http AirPlay 443 TCP Secure Sockets Layer…
Sync agent failed to start after uploading Tomcat certificate signed by RSASSA-PSS
My customer provided me signed certificates for the CSR i generated from the CUCM and IMP. After uploading all sudden the IMP sync agent stopped working. Both CUCM and IMP accepted the certificates and there was no error messages. The SYNC agent logs was throwing Bad certificates errors but it was not informational. The customer…
XMPP per IP limit CUCM 14
Last week working with a customer i ran in to an issue where all jabber user who connect through VPN where unable to login. Working with Cisco TAC, we found this is due to the new feature introduced on CUCM 14 which by default permit XMPP connection form 10 Device with same IP. You can…
DNA is still initializing. Please refresh the page and try again after sometime
You might have seen this message when Do analyzing the dialed Number. To get rid of this, disable the below services And start the services in the order