[cisco-voip] CCM 4.2 Sr1a - Upgrade

[Barry Oliver]

Hi

Has anyone out there successfully completed an upgrade to 4.2Sr1a.  I am
looking at doing this for a customer to get a few of the new features
but when we upgraded the phone loads to 8.2 we started to get
intermittent one way voice issue so went back to 7.3.  This was on a 4.0
CCM.

I have done the upgrade in a lab and everything look's ok after dropping
back to 7.3 phone loads.  The question I suppose, is it ready to be run
in production.

Thanks