Is it possible to update Elastix 2.3 to the latest version 5 without crap?

Question

linux

The point is this. I got a job in an office, here they have a simple ip-telephony on Elastix, which no one has touched for years - version 2.3 on Centos 5.7.
Is it possible to painlessly update the whole thing (both CentoOS and Elastix) by yum update? Somehow it is hard to believe that all this will rise, given such a huge difference in versions. Does anyone have similar experience?
Or is it easier to demolish everything and put it from scratch?

Answer 1

The 5th version is generally not compatible with the previous ones. In addition, why break something that already works and has been tested for years?) Further, even stupidly updating the asterisk itself most likely will not work if the dialplans are somehow tricky or self-assembly modules are used.
If you still feel like breaking and building, then look towards freepbx, if you don’t want painful mana and assemblies / reassemblies of everything and everything with manual writing of configs and a dialplan, then it’s better to install Visual PBX. If you want it to be generally beautiful \ simple and not expensive, then 3sh. And if you want to forget about the automatic telephone exchange for a long time and not bother at all, then take something like the Grandstream UCM6102, which will be reliable and inexpensive.

Answer 2

Just demolish and rebuild from scratch

Answer 3

It will work for the same number of years on version 2.3.
Elastix 5 is a completely different product based on 3CX.
You can look at AsteriskNOW, but you'll have to migrate almost everything manually.