If anyone has noticed, you can not create more than 255 virtual fax devices on Elastix. When you exceed 255, they will no longer work.
I have found where the bug is, but need help figuring out a solution.
What happens is that in /etc/inittab, where the ttyIAX lines are, the first field which is the id starts with fx then the number of the device.
i.e:
fx1:2345:respawn:/usr/sbin/faxgetty ttyIAX1
fx2:2345:respawn:/usr/sbin/faxgetty ttyIAX2
etc....
Now when this reached ttyIAX 256, this is what you get:
fx100:2345:respawn:/usr/sbin/faxgetty ttyIAX256
And here, the id which is fx100 exceeds 4 characters, and it will no longer work. Also anything after ttyIAX256, will not work as well because the id will always be more than 4 characters: fx101 - fx102 - fx103... etc.. and this field should be 4 characters or less.
Now, I think making this field read more than 4 characters is a bit difficult or can not be achieved, as this is the way the operating system is built.
However, perhaps we can prefix the id with only f instead of fx and this way we would add a much higher capacity of ttyIAX devices that should suite everyone.
If you know where to change this, please advise or recommend a different approach if you have any.
Your time is much appreciated.
I found the solution and I thought I'd post it here for others.
You will need to edit the following file to change the id initialization in the inittab.
/usr/share/elastix/privileged/faxconfig
Note: There is two occurrences.