Below are the steps to configure SIP integration between CUCM and Unity Connection. This is now the Cisco recommended best practice and replaces the legacy CTI Route Point configuration.

Create New SIP Trunk Security Profile

• In CUCM, navigate to System > Security > SIP Trunk Security Profile

• Click Add New

• Enter a Profile Name and Description, check Accept Out-of-Dialog REFER, Accept Unsolicited Notification, Accept Replaces Header. Click Save.

Create a SIP Profile

I was recently tasked with upgrading Cisco Emergency Responder 8.6 to 10.5. The 8.6 install just so happened to be on a physical IBM MCS server so I thought I’d document the steps of upgrading a physical install of CER 8.6 to a virtual CER 10.5 install, along with the software used to complete the upgrade.

• Log in to Disaster Recovery System by selecting it from the drop down box located on the top right of the CER login page and clicking Go.

There’s plenty of great posts out there on how to make bootable CUCM/Collaboration media with paid GUI software such as UltraISO or free command line utilities like cdrtools. Inspired by those bloggers, I wanted to share a method to create bootable media that features the best of both worlds: open source utilities with easy to use interfaces, all for the low low price of free.

Software you’ll need:

7-Zip / cdrtfe

First, find an existing bootable CUCM ISO (a Red Hat or CentOS live cd will do the trick as well) and open it in 7zip.

I’ve recently began studying for my CCNA Collaboration exam and to help with my studies I’ve built a small collaboration lab. Nothing too fancy, a 2811 with PVDMs and FXO/FXS cards, 2 3750 PoE switches, and 2 Cisco 7960 VOIP phones. My lab server has a dedicated NIC which connects to the lab network and hosts a domain controller, workstation, and CUCM 11.5 virtual machines.

All this was working well until I configured the switches to have a separate dedicated voice VLAN. The phones started having issues contacting CUCM and downloading new configuration files or firmware. If I moved the phones back to the same VLAN as CUCM the phones would work properly. Sounded like a TFTP issue to me, and here are the steps I followed to resolve the issue.

So you have stateful failover configured on your pair of Cisco ASAs and need to upgrade ASDM or the os? Maybe a critical security vulnerability was discovered with the software and you need to upgrade them ASAP. With stateful failover, we can perform a zero downtime upgrade on our ASAs to minimize end user disruption. Below are the steps I used to upgrade a pair of ASA 5525-X’s using the command line interface. You can find Cisco’s documentation for upgrading an Active/Standby Failover Configuration here.