This would be a very useful feature to have available in dialplan. To be able
vary the length of a call, during the call.
I just emailed the dev list with the thought of adding this feature to
confbridge with the following type of commands:
same => n,Set(CONFBRIDGE(bridge,max_time)=
or
same => n,Set(CONFBRIDGE(bridge,max_datetime)=
or
same => n,Set(CONFBRIDGE(bridge,start_datetime)=
same => n,Set(CONFBRIDGE(bridge,stop_datetime)=
with the following to add some notifications
same => n,Set(CONFBRIDGE(bridge,hangup_warning)=
same => n,Set(CONFBRIDGE(bridge,hangup_message)=
The idea was that if you have some call credit it will reduce by the variable
number of callers which will join the same bridge.
Using same => n,Set(TIMEOUT(absolute)= only sets the time out for an individual
call and not the bridge.
Perhaps something that could be used for all call types would be a better
approach rather than modifying individual apps.
Regards
From: Nir Simionovich
Sent: Wednesday, December 17, 2014 8:16 PM
To: Asterisk Developers Mailing List
Subject: [asterisk-dev] ARI Extending Existing Feature: bridge control
Hi All,
After shipping out my first patch to ARI, I became hungry :-)
So, now I've set up a slightly higher goal, adding a much required feature
for ARI. I'll describe the problem first, then
I have some questions.
The Asterisk dial application enables us to limit the duration of the call
and play a warning sound. Once this had been
set, as far as I know, you can't modify these values externally. When the
feature was originally introduced, over 10 years
ago, the goal was simple: enable a calling card system to limit the call
according to a credit line.
As time went by, people realized that this feature is useful, however
limited. In today's mobile application era, when a
VoIP phone can actually purchase credit while on the actual call, we need a way
to control this from an external source.
Now, I've started digging into the code, and I've managed to understand that
following (feel free to bash me if I'm wrong):
1. The time limits are maintained at the bridge structure, not at the channel
- using the ast_bridge_config data structure
2. The ARI bridges GET method only retrieves a list of bridges and their
associated channels, not their configurations
So, assuming that I'm reading the ast_ari_bridges_list function from
resouce_bridges.c correctly, we retrieve
a snapshot of all active bridges via the snapshots variable (if you can call it
that). The output is built by iterating through it.
Now, my questions:
1. Is there a way to obtain the information in ast_bridge_config for each of
the iterated bridges, then output it via the JSON response?
2. Is there a way to manipulate the configuration of the bridge, via
modifying the associated bridge configuration?
The floor is now open :-)
Nir S
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