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Community Member

Upgrading Cisco Call Manager

Hi,

I have a customer with a cluster of two MCS7835 running Cisco Call Manager Version 3.0(10). My customer had just get SASU rights so they want to upgrade the version of Call Manager. What version should I consider in order to do the upgrade, Service Patches and OS upgrades?, I mean what could be the best version of call Manager recommendation to do the upgrade?.

Thank you,

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Re: Upgrading Cisco Call Manager

Unless the customer is very highly conservative, the best version to go to is 3.3(2). The upgrade process will be somewhat difficult, as a direct upgrade from 3.0 isn't supported - you are required to upgrade to 3.1 and then to 3.3. If your installation is only a few dozen phones, it may make sense to rebuild from scratch.

http://www.cisco.com/en/US/products/sw/voicesw/ps556/prod_installation_guide09186a008011aa82.html#60307

If your customer is highly conservative or effort to upgrade is a major concern, a direct upgrade to 3.2(3) from 3.0(12) is documented as supported. I'm not sure what a 3.0(10) to (12) upgrade involves, and if you seek TAC guidance, it might turn out that you could come directly from 3.0(10). 3.2(3) has been highly successful for us with only a couple minor issues (both of which are fixed in engineering specials and will be in the next service pack).

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_callmg/ccmcomp.htm

With regards to OS versions and other patches, it is always recommended to use the latest. Not only are important bugfixes included, but there are a great number of security fixes. The following URL is updated constantly with the latest versions of patches and updates you should have applied:

http://www.cisco.com/univercd/cc/td/doc/product/voice/c_callmg/osbios.htm

Community Member

Re: Upgrading Cisco Call Manager

Thank you very much, your help is very appreciated,

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