System Incompatibility on 5621SW IP

[product26]

We have 4 5621SW IP phones running i20aVPN23249.bin firmware.

The phone connects to the VPN just fine and appears to boot just fine, but as soon as the phone displays its normal screen for a millisecond, and appears as if it is going to log in the extension, it goes blank and reads "system incompatibility" if you let it sit for a while it will blink back to the regular screen and then back to 'system incompatibility"

When kholladay helped set up our phones, he said something that made it sound like the firmware was not an official release and may have been a beta..?

The odd thing is that one of the phones works just fine at one of the locations. the other two locations display the above symptoms.

NOTHING had changed, the phones just stopped working one day.



ANY HELP?? kholladay? hello?

 

[product26]

one post suggested that the original firmware may expire after a certain number of days...?

 

[product26]

http://www.tek-tips.com/viewthread.cfm?qid=1459830&page=7

In the above thread, kholladay suggests that "With 4.0 you have no way to license the VPN phone so it will (should) stop working after the 180 days trial has expired. "

Looks like our IP500 is running 4.0(10)
If we upgrade to the last 4.1 release, would this solve the problem?

Is it a simple upgrade to go from 4.0(10) to 4.1(15)?
And what all is involved in the upgrade?

 

[kwing112000]

If you go to 4.1 version you will need a license for each phone. the upgrade is not a huge deal. But i would recommend that you have someone who has done it before just in case.

Kevin Wing
ACA- Implement IP Office
Carousel Industries