Yesterday a customer ask me if he can install a CUCM on a class B subnet which has 2046 IP address. The answer is … Thumb Rule A good rule of thumb is to limit the number of devices per VLAN to about 512, which is equivalent to two Class C subnets (that is, a…
Category: CUCM
Reason codes for LastOutOfServiceInformation
ReasonForOutOfService=10 — TCPtimedOut – The TCP connection to the Cisco Unified Communication Manager experienced a timeout error ReasonForOutOfService=12 — TCPucmResetConnection – The Cisco Unified Communication Manager reset the TCP connection ReasonForOutOfService=13 — TCPucmAbortedConnection – The Cisco Unified Communication Manager aborted the TCP connection ReasonForOutOfService=14 — TCPucmClosedConnection – The Cisco Unified Communication Manager closed the TCP…
Flex Provisioning
With flex license, you will be getting a Provisioning EMail. Even If you don’t activate the license within 30 days the billing will gets started automatically. Todays blog is about how to provision and starting a Webex messaging subscription. Open the email you received titled Provisioning information required for order…, and click Set Up Your…
Assign Missing Owner Id using DAT
70% of license warning messages I have seen at my customer sites are due to missing Owner-ID.A common question many of my friends asked, is there a tool to assign Owner-Id on devices. Yes Cisco provide a tool called, Device assignment Tool in short we call it DAT. The tool connects to your system and…
Cisco Collaboration Infrastructure Requirements
From CSR 12.7+/14+, Concept of TRC is not moving forward. Use below mentioned link to see the UC infrastructure requirements. Access Cisco Collaboration Infrastructure Requirements
Flex 3 Licenses
Flex license is still a confusing topic for may of us . Question like, How to compare with old license, Which license are included with NU, Which license to choose when selecting a 78XX phone model , what are the benefits of each license type etc.. Today blog is all about the Flex 3 license….
SQL Query to Pull device model and Firmware load from CUCM
In this blog I share two SQL queries. The first one to pull the device MAC address with Dn and the device type . Second one to pull the device Mac address with DN , active load and inactive load. Tables used. DeviceĀ – This table contains device-level information like IP Phones and gateways. NumPlanĀ – This…
SQL Query to pull device details with CSS from CUCM
The beauty of sql query is that you can pull custom information from CUCM. Which is useful when preparing document and sharing details with your customer. In this blog I share Three SQL queries. The first one to pull the device MAC address with Dn in the order of DN. Second one to pull the…
CUCM Phone Migration Feature
This feature is available in Cisco Unified Communications Manager (UCM) versions 11.5 SU8, 12.5 SU3, 14.0, and 15.0. The Simple Refresh feature allows for the migration of multiple lines, Busy Lamp Fields (BLF), speed dials, and more, without user intervention. For End Users: Simply enter your credentials on the new phone to transfer all your…
A- Flex Licenses are Agnostic
Cisco released EOL for perpetual License and now everything is Flex. With the Flex licensing ,Cisco removed the License versions locks. Means, you can use your flex license with any versions. But there are few points which you need to keep in mind. We recently purchased 26 flex license for our Lab CUCM and we…
CRAZY NETWORKING 