CUCM and Cisco Unity Connection

I haven’t touched Cisco VOICE product ever since 2008. The last time I used CUCM (it was called CCM) was in 2008 while Cisco Call Manager was still in version 4.3. Technology has changed a lot since, Cisco has released CUCM 5, 6, 7, 8. and by end of 2012, they are releasing CUCM Version 9.

I think it’s time for me to catch up the technology. I am not going to do a CCIE Voice, however, I have to at least make myself familiar with the CUCM product. Hence, I have asked the company to get a NFR CUCM Kit for me to play with.

I have installed the CUCM 8.6 and Cisco Unity Connection on the VMware fusion 4 (for Mac OS). It was a bit tricky when I trying to install the Unity Connection, as it keep on saying the Hardware (VM Setting) doesn’t support it. If you are looking at setup a Cisco Voice Lab, I suggest to use the following setting.

For CUCM 8.6.
– 1 core CPU
– 2 gb memory
– 76 gb of HDD

For Unity Connection
– 2 core CPU
– 4 gb memory
– 200 gb of HDD
– 200 gb of HDD (you need 2 HDD, otherwise, you cannot install Unity Connection)

You can see the different of the setup screen if you have different Hardware setting.


3 responses to “CUCM and Cisco Unity Connection

  1. The unity connection config doesn’t work for me on VMware Fusion 5

  2. Hello Howard,
    Thanks for this wonderful blog. I am a newcomer to Cisco voice and just finishing my CCNA Voice training. I have a Macbook i5 with 8 gb RAM. I have installed a virtual CUCM version 7 but have lots of issues with it. I can’t access the CUCM as I have no loopback address and can not access the virtual (Red Hat Enterprise) Linux box I have that has the CUCM v7.

    Can you please help me with how to do the networking side so that I can browse to the CUCM via a web browser. I have been reading about tap driver and loopback ( and ) for sometime now and have not been successful to get the virtual linux box and my macbook to communicate. I have configured the CUCM box with IP address but can’t even ping. I have read from various web sites that I need a loopback and a router setup in GNS3.

    Kind regards,


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