Vernon Posted November 18, 2014 Report Share Posted November 18, 2014 Hello, Ultimately what i want to do is painlessly transition my customers from version 3 PBX's to a version 5 PBX without having to touch the phones physically or to upgrade their respective servers. What i want to do is completely take down a version 3 server and change the DNS records and point them to a version 5 server. For the purposes of this discussion let's say 100.xxx is version 3 server and 200.xxx is version 5 server The FW of the phones on 100.xxx is 7.3.30 I will explain the procedures i take in my migration. 1. Export the domain from 100.xxx and import to 200.xxx 2. Obtain MAC of the phone and attach it to it's respective extension 3. Change DNS records to point testdomain from 100.xxx to 200.xxx 4. Reboot the phone once records change 5. Phones attempt to obtain configuration file but give return code 500 and ultimately fail 6. I upgrade the FW of the phones to 8.4.18 7. Reboot phone and it picks up configuration file and register on 200.xxx without issues What i'm looking for is guidance on how to do this is seemlessly without any issues. Preferably i would like to not have to push any updates to the phones on 100.xxx that has to upgrade the FW to 8.4.18 but so far it looks like this is the only way to transition the phones from 3 to 5. I would welcome any suggestions or direct me to the right path i would appreciate it, Thank you for your time. Quote Link to comment Share on other sites More sharing options...
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