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RJ-22 Pinout Requirements For Headsets on Cisco Phones

July 15, 2011 - by Admin User

If you’re hoping to re-use an existing modular telephone headset with Cisco phones, verify the pinout of the RJ-22 connector reflects the pinout below:   Pin 1 Pin 2 Pin …

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Communications Manager / Contact Center Express / Slideshow

Settings That Impact License MAC Address on Cisco UC Servers

July 15, 2011January 22, 2018 - by Admin User

UPDATE (January, 2018) – This article applies to the following Cisco UC Products: Communications Manager – 5/6/7/8 CUPS / Instant Messaging & Presence – 5/6/7/8 Unity Connection – 5/6/7/8 Emergency …

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Communications Manager / Slideshow

VOIP Toll-fraud prevention in IOS 15.1(2)T and later causes call failures

July 15, 2011 - by Admin User

Cisco has stepped up the toll-fraud prevention in IOS 1.1(2)T and later by rejecting all calls sourced from non-trusted IP addresses by default. This means all inbound calls will fail …

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IOS / Slideshow

IOS CLI timesavers

October 25, 2010 - by Admin User
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Communications Manager / Slideshow

Common UCM 6/7/8 CLI Commands

October 15, 2010 - by Admin User

Here are some commands that I use fairly often on Communications Manager 6/7/8.

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IOS / Slideshow

Upgrade IOS on 3750 or 2960S stack

September 28, 2010 - by Admin User

Use the following command to upgrade IOS on a 3750 or 2960S switch stack:

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Communications Manager / Slideshow

CUDAC/CUBAC Administration URL

September 17, 2010 - by Admin User

Here’s the URL for administering a CUDAC/CUBAC server.

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Communications Manager / Slideshow

Enabling NIC Teaming on Cisco’s linux based UC servers

August 27, 2010 - by Admin User

This applies to Unified Communications Manager and Unity Connection systems.

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Slideshow / Uncategorized

Perform snmpwalk to a remote device from a mac

March 9, 2010 - by Admin User

To retrieve a list of supported snmp oid’s on a remote device from a mac, execute the following command in a terminal session on a mac:

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Communications Manager / Slideshow

Joining UC ISO files

March 1, 2010 - by Admin User

Most new UC upgrade files downloaded from Cisco.com for Cisco’s linux based appliance applications are two part files that must be joined after being downloaded. This includes Unified Communications Manager, …

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Latest Posts

Using MacOS built-in SFTP server

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Rebooting CUCM servers, verifying system status and database replication

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Installing CA Signed Certs on CUCM

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CCX Scripting Series – Are there agents Logged-In or Ready?

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Useful Cisco Links

All of the links below are sourced from the Cisco Tools Catalog (found here).


Collab Solutions Analyzer
Bug Search Tool
Device Coverage Checker
Dialed Number Analyzer for CUBE
Product Upgrade Tool
Software Downloads
IOS Capture Config Generator
DSP Calculator

Cisco UC Virtualization Sizing

All of the links below are sourced from the Cisco UC on UCS Wiki Supported Applications page (found here).


CUCM Virtualization Specs
CUCXN Virtualization Specs
UCCX Virtualization Specs
CER Virtualization Specs
CUACA Virtualization Specs
IM&P Virtualization Specs

Generic Links

CNAM Database Lookup
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