[asterisk-users] Querying channel variables via the Manager API

Tim Panton tim at mexuar.com
Wed Apr 18 06:50:40 MST 2007

On 17 Apr 2007, at 22:32, Lenz wrote:

> Hello list,
> we are developing a new application that uses the Manager API in  
> order to find a set of channels where variables are set in a  
> predefined way. To do this, we currently send a Status command to  
> obtain all available channels and then query them all, one by one,  
> fot the status of a certain dialplan variable. As you can imagine,  
> this gets rapidly pretty tedious as the number of active channels  
> on a server grows and requires a lot of round-trips to and from the  
> Asterisk server.
> I was wondering if there are more efficient ways to get:
> 1. a variable as set on all channels
> 2. the complete list of channel variables for one channel, using  
> standard manager response block and not reverting to an execute CLI  
> command " show channel Local/1234 at x "
> Anybody has ideas/hints on how to make all this a bit less cumbersome?

You could query via SNMP. it has the astChanVariables for each active  
as a DisplayString

I can't promise that this is less cumbersome, but the overhead might  
be smaller.

Tim Panton


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