CSR Compatibility Matrix

When upgrading/Installing UC applications we need to make sure all applications are on compatible versions. CSR Compatibility Matrix provide you the recommended version and minimum version details . We must follow this matrix when installing /upgrading UC applications.Todays blog is all about the CSR compatibility matrix and how to use it. Compatibility Matrix Link Access…

Insufficient license Warnings

I used to get calls from my customer saying that they see insufficient license warnings when login to CUCM. 90 % of the cases reported where due to the OWNER configuration . Remaining 10% are due to other reasons. With Pandemic many customer started creating Jabber profiles without choosing proper Owner filed which cause the…

Change ANI to Last/First redirect – SNR

When placing a PSTN call, if you send calling information other than your DID block. Most ISP drop the call or translate this to your DID pilot number. They does this for Billing Purpose. For such scenario instead of using Originator we need to use Last redirecting information. My previous blog was about how to…

Forwarding to PSTN Fails when some one calls from Outside

Many customer requested call forwarding to mobile during the pandemic. Even with proper forwarding CSS, One common issue which almost all customer reported was that call forwarding to mobiles/landline gets failed when some one call from outside. But for an inside call it works. Root Cause. When placing a PSTN call, if you send calling…

Upgrading/Migrating UC- Which documents to refer

I have seen engineers struggling to complete UC Upgrade/Migrations. 90 % of the cases where due to lack of planning. To avoid surprises Its mandatory to plan the migrations. Today’s blog is all about what documents to refer when upgrading UC applications. Mandatory reading for any upgrade  A) Upgrade and migration guide B}) Release notes…

Change PLM User/Password

Changing Username and password is a common request from our clients. Today’s blog is all about the PLM user/password options. How to change username /password and unlock the admin account . Change PLM Password Use below command to change your PLM password. license management reset user password Change PLM Username Use below command to change…

For secure signaling & media , do we need mixed mode ?

Security is a major concern for every organization. But when it comes to UC security many organizations are less concerned . Some major changes happened with UCM security . Today’s blogs is all about comparing the UCM security and the changes with different CSR revision. We all are familiar with UCM Non Secure and Mixed…

CUCM Certificate Regeneration Cheatsheet

Its a common doubt which comes to everyone’s mind when regenerating the UCM certificates. When regenerating a certificate whats the risk involved, what services need to be restarted ,do we need to restart the phone or not etc… Refer below mentioned cheatsheet during such situation . And this was shared on Cisco Live presentation. The…

FXS port SIP Registration with CUCM

MGCP or SCCP, these are the two protocols which comes to our mind when are asked to register a VG or FXS port on CUCM. But now Its not just MGCP or SCCP. We can register the FXS port’s using SIP protocols. If below requirements met, you can register your VG/FXS ports using SIP protocol….

Extension mobility login options

Extension Mobility allows users to temporarily access their phone settings, such as line appearances, services, and speed dials, from other phones within your system. I am not explaining the steps how to enable this feature, because its already covered by many on the internet by both videos and documents. This blog is all about the…