Feature Request.

Would be nice to place a message to to the users on concurrent calls limit reached, instead of just sending back a !congestion.

It would also be great if this was updated to start up media if media bypass is turned on, so the user hears the messsages.

Here is the recipe from free switch.
`<extension name="limit_exceeded">
<condition field="destination_number" expression="^limit_exceeded$">
<action application="playback" data="/sounds/overthelimit.wav"/>
<action application="hangup"/>
</condition>
</extension>`