[asterisk-users] Old Asterisk Release wanting to upgrade ...

Joshua Colp jcolp at digium.com
Tue Apr 15 08:40:57 CDT 2014

Josh Metzger wrote:

> A little while back, I upgraded some systems from Asterisk 1.4 (I
> believe it was, and they were already running DAHDI), to 11.
> 11 made the most sense as far as it being a LTS release so it would be
> longer before being forced into a new version (as far as continued bug
> fixes and things), and I figured it would be more stable than 12.
> The upgrade wasn't too difficult, even jumping several versions.  I
> *strongly* suggest reading the various "UPGRADE-XX" files that come with
> the Asterisk source so you don't get caught by any changes between
> versions.  There are quite a few changes and each dialplan is different,
> so things that caught me would be different than what you might run
> into.  Those upgrade text files are extremely useful in this case.
> Beyond that, I spent a lot of time migrating my config files.  Since
> newer versions have newer / different options, I didn't just keep my old
> files.  For example, for SIP.CONF, I went through and modified the
> default settings in the new file to match what I needed, copied over my
> site-specific sip definitions from the old file, then double-checked
> everything.  I did that with each file that I had modified (and in your
> case, you'll have to go from zapata.conf to chan_dahdi.conf).  It can be
> tedious, but it really only took me a day or two (taking time to
> double-check my changes). Overall, not a bad experience at all.

Awesome to hear that! Backwards compatibility is certainly at our 
forefront these days when doing development and we try our hardest to 
make the experience of upgrading as painless as possible from that 


Joshua Colp
Digium, Inc. | Senior Software Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - US
Check us out at: www.digium.com & www.asterisk.org

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