[Freeswitch-users] Table lookups in a dialplan - is using mod_blacklist appropriate or too much of a hack?

Nathan Neulinger nneul at mst.edu
Tue Mar 19 00:12:57 MSK 2013


Yeah, considered that... trying to have the core of my dialplan be as 'static' as possible to avoid runtime dependencies 
on other services. Moving from a very stable CCM implementation and looking at freeswitch as an alternative to full 
outsourcing - so wanting to avoid as many possible points of failure as I can.

-- Nathan

On 03/18/2013 03:58 PM, Avi Marcus wrote:
> I use: mod_odbc_query <http://wiki.freeswitch.org/wiki/Mod_odbc_query> to query SQL directly in the dialplan -- it's
> from the contrib repository.
> Then you could store a bunch of information about each number and you get each one as a channel variable.
>
> -Avi
>
> On Mon, Mar 18, 2013 at 10:49 PM, Nathan Neulinger <nneul at mst.edu <mailto:nneul at mst.edu>> wrote:
>
>     I was thinking of using mod_blacklist as a way to define a table of short extension numbers to be able to "look up" an
>     entry in a dialplan condition. i.e. defining a blacklist "local_ext_but_not_freeswitch" - or for distinguishing easily
>     between sip and skinny phones (is_sip_ext, is_skinny_ext).
>
>     Does this seem like a useful use of the (somewhat misnamed) mod_blacklist, or a bad approach?
>
>     Reason for this is that I'll have approximately 1600 extensions, discontiguous - some of which will be on freeswitch,
>     others which won't. For the ones that are on freeswitch, some of them will be on skinny phones, and others will be on
>     SIP phones.
>
>     I was leaning toward something like:
>
>     <extension name="Local Ext Check">
>         <condition field="${blacklist(check is_local_ext $1)}" expression="^true$">
>           <condition field="destination_number" expression="^(\d\d\d\d)$">
>
>           </condition>
>         </condition>
>     </extension>
>
>
>     The alternative was to build a new module very similar to mod_blacklist - i.e. 'mod_lookup', with the additional
>     capability of having a value lookup and not just existence check.
>
>     I realize I could rig something up with mod_hash, but I like the 'load straight from a file' capability.
>
>     Thoughts?
>
>     -- Nathan
>
>     ------------------------------------------------------------
>     Nathan Neulinger nneul at mst.edu <mailto:nneul at mst.edu>
>     Missouri S&T Information Technology (573) 612-1412 <tel:%28573%29%20612-1412>
>     System Administrator - Architect
>
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-- 
------------------------------------------------------------
Nathan Neulinger                       nneul at mst.edu
Missouri S&T Information Technology    (573) 612-1412
System Administrator - Architect



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