OpenSER / Kamailio

[Peter Lemenkov]

Hello All!

2009/10/25 Felix Kaechele <felix at fetzig.org>:
> Hi there,
> I'm just starting to play with my SIP Phones using OpenSER.
> I was wondering why there have been no updates to the OpenSER package
> since it was renamed to Kamailio in version 1.4.0?

There are plans to package sip-router, when it will reach some level
of quality, since it's a merge of SER and OpenSER/Kamailio. Also,
there is an attempt to package OpenSIPs (another one fork of
SER/OpenSER codebase) - take a look here:

https://bugzilla.redhat.com/show_bug.cgi?id=529831

> I did however notice that version 1.4.0 in fact is of an earlier date
> than version 1.3.4 (which still is named OpenSER and is in Fedora).

1.3.4 is the last stable version of OpenSER. Since ver. 1.4.0 it was
rebranded as Kamailio.

> So is there an actual difference between OpenSER and Kamailio - other
> than the name - that prevents us from replacing the OpenSER package with
> a Kamailio package.

A lots, actually. There are some changes in config-file syntax, in
plugins and so on. Every version of OpenSER/Kamailio
(1.3.x/1.4.x/1.5.x) is incompatible to some degree with previous one.
Fortunately, they can be installed in parallel due to different naming
scheme.

The curse of this project is the team/features management issues,
which led project to the number of consequent forks (and one merge),
which confuses end users a lot. One of popular questions from
customers, is "which one from these routers should we choose -
SER/OpenSER/OpenSIPs/Kamailio/SIP-Router?". I'm voting for OpenSER
1.3.4 right now - it's stable and it was proved to work reliably.
Perhaps, at 2010, we may consider switching to SIP Router.

-- 
With best regards, Peter Lemenkov.