How to Configure a Cisco Call Manager Inter Cluster Trunk
Im currently assigned a project merging two old CUCM clusters (8.x and 9.x) into a new 12.5.x…
Cisco
Configuring Cisco Unity Connection with Office 365
Happy New Year everyone! I’ve had a nice break from work and the blog over the holidays…
Troublshooting %VOICE_IEC-3-GW: SIP: Internal Error (1xx wait timeout): IEC=1.1.129.7.65.0
So this one was a doozy! I get a call from helpdesk advising me that some voip…
Setting up a Linux Network Probe with Cisco RSPAN
In this tutorial I will go over the steps to setup an Ubuntu network probe hosted on…
Cisco RTMT – Installer User Interface Mode Not Supported
Last week I was working with Cisco TAC on a voice case that involved the use of…
Getting Started with Cisco Modelling Labs 2 Personal Edition
The long awaited successor to Cisco VIRL dropped last week. Say hello to Cisco Modelling Labs 2.0!…
Cisco Prime Infrastructure Flashing Console Cursor
Last week we upgraded Cisco Prime Infrastructure to its latest security patch level (3.7 update 3). So…
Cisco Wireless LAN Controller Access Point Certificate %DTLS-3-HANDSHAKE_FAILURE
I recently troubleshooted an issue wherein our Wireless LAN Controller was dropping access point connections. A quick…
Using Linux Commands on Cisco IOS
A neat feature of Cisco IOS and IOS-XE is the ability to enable Linux shell functions and…