Installing CallManager Express in GNS3

Published by Keyboard Banger on


This article describes how to transform a Cisco router in GNS3 into a Cisco CallManager Express or CUCME.

Remember that a Cisco router can become a CallManager Express if we install the CUCME package into it.

I’ll assume you have a CUCME package on your computer.

Here is the setup in GNS3:

  • a router destined to become CUCME
  • a cloud item associated to the physical network card of the host machine
  • a link between the router and the cloud.

We also need a TFTP server software. One of the best free TFTP servers is TFTPD32.

After you build the topology in GNS3, configure the router:

  • set up the FastEthernet interface for connectivity with the host machine network. The host machine NIC address is The router’s FastEthernet IP address is

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  • Erase the router Flash:

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  • And format it:

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To the TFTP server now. Download and install the TFTP server.

Set it up in a way that it points to a directory that contains the CUCME file.

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The E: path is where the CUCME tar file is stored

On the GNS3 router, with the archive command:

  • copy the CUCME tar file from the TFTP server to Flash,
  • extract the files from the CUCME tar file.

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After the operation terminates, you do a show telephony-service to display the CUCME version:

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Categories: Home Lab

Keyboard Banger

Keyboard Banger is a network engineer from Africa. He has been working in network support and administration since 2008. He started writing study notes about certification exams and technology topics a couple of years ago. When he's not writing articles, he can be found wandering on technical forums.


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