[asterisk-users] Options for bridging channels in a smart bridge

Jean AUNIS jean.aunis at prescom.fr
Wed Jul 5 14:04:00 CDT 2017


Le 2017-07-05 18:51, Joshua Colp a écrit : 

> On Wed, Jul 5, 2017,
at 01:45 PM, Jean Aunis wrote:
>> Hello, I am struggling with a
problem which I thought would be an easy one : bridging several channels
together in a *smart* bridge. I emphasize *smart* : I want my bridge to
be a native_rtp one when only two channels are involved, and switch to
softmix technology when a third channel comes in. I thought I could use
ConfBridge for that, but it creates a bridge that is not smart (it is of
type softmix even if two channels only are involved). I can do this with
ARI of course, but handling transfers will become quite difficult : I
will receive replace_channels events, and channel optimization will not
be performed. I managed to have something working this way, but I had to
write a lot of code and some situations are very tricky to debug. The
easiest way I found was to write a piece if dialplan mixing BridgeWait,
Bridge and BridgeAdd. This works well, transfers are handled by the
Asterisk core, and the bridge is smart. Still, it requires to maintain a
list of bridged channels in order to call BridgeWait, Bridge and
BridgeAdd in the right order and with the right parameters. Can you
think of any other way (hopefully easier) to achieve this ?
> Not
really, there's no cookie cutter application that behaves as you
> need
using the bridging API.

Thank you for your quick answer.

Do you think
it could make sense to add an option to the ConfBridge application for
this ? Personally I would say "not really", because many ConfBridge
features may become unusable when the bridge is in native_rtp
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