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Beginner

Cisco SX 20 upgrade problem

Hi all,

I have an SX 20  with a shipped version " :  (Shipped Version            : TC7.0.2).

After a long time of use, we did an upgrade to the "version TC7.2.1"

After this upgrade, we have found an error according to the license, and the system cannot make and receive any call.

I decided to restore to the old System version , but i don't know how and also i didn't find this version available on Cisco Web site " deferred version".

 

Would you mind to help me how to do this?

Thanks in advance

 

Regards

 

CHAM

 

 

 

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If you have access to the SX20's web interface, you can swap the old software image previously installed.  Take a look at the SX20 Admin Guide, on pg 51.