Configuring Cisco Unity Connection OAuth2 for Office 365 Integration
Microsoft have recently deprecated basic authentication in Exchange Online (Office 365) and in doing so require all…
A Tale of SIP, RTP and the One Way Audio Issue
I’d tell you a UDP joke, but you might not get it! Nothing is more apt with…
How To Stack a Cisco 3850/9300 Catalyst Switch
OK long time no post. That’s my bad. I have been busy rolling out Cisco Catalyst switching…
Troubleshooting SIP/2.0 488 Not Acceptable Media
Last week I had an interesting issue with one of our SIP Voice circuits. Calls to a…
Create A Custom Call Variable Layout for UCCX Finesse Desktop
Continuing on with yet more Voice, I recently cutover to a new UCCX 12.5 cluster. As part…
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…
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…