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…

SRV Checker

SRV checker is a Cisco Tool which queries public DNS servers for SRV records related to collaboration products and services for a given domain. It further resolves the DNS A records, tests the connectivity on discovered ports and validates SSL certificates. Issues found and corrective action plan are displayed for each collaboration feature: Business to…

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…

Competitive War Room

How many of use used Cisco’s Competitive War Room option to beat competitors ? The Global Competitive War Room is your best resource for beating the competition, and it now includes competitive assets for security and collaboration. Engage with the War Room and get comprehensive, cross-architecture, competitive support 24 hours a day, 5 days a…

G3 Fax Protocols

Modern fax communication is based on the Group 3 (G3) fax standard, which is composed of the ITU-T specifications of T.30, T.4, and T.6 T.30 details the signaling, T.4 specifies the Modified Huffman (MH) and Modified Read (MR) encoding methods, and T.6 covers Modified Modified Read (MMR) Basic G3 Fax Transaction The optional Called Subscriber…

Expressway Smart Licensing

Nowadays, almost all Cisco products are smart Licensing capable. From version 12.6, expressway support Smart licensing. We are familiar with Expressway options key and release keys infrastructure. With new releases we no more need option keys except the below (still needed). Below option Keys work on both Traditional and Smart licensing mode. Note:- Single licensing…

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….