[asterisk-dev] ARI Snoop

[Phil Mickelson]

Matthew,

I really, really appreciate the effort!  I will try your suggestion and see
if it works.

The operator (the channel being snooped) is active.  However, there's no
other voice connection other than snoop.

I just saw the response from Joshua so that bodes well.  I'll let you guys
know if this works.

Thank you again.

Phil Mickelson



On Sun, Jul 19, 2015 at 5:40 PM, Matthew Jordan <mjordan at digium.com> wrote:

>
> On Sun, Jul 19, 2015 at 4:01 PM, Phil Mickelson <phil at cbasoftware.com>
> wrote:
>
>> Thank you for your response.
>>
>> Phil Mickelson
>>
>> On Sun, Jul 19, 2015 at 4:56 PM, Joshua Colp <jcolp at digium.com> wrote:
>>
>>> Phil Mickelson wrote:
>>>
>>>> Hello,
>>>>
>>>> I've written a full answering service application with Asterisk at the
>>>> center.  All of my interaction with Asterisk is through ARI.  Thank you
>>>> so much for this feature!  Without it I wouldn't have been able to make
>>>> this work!
>>>>
>>>> I've just implemented a new Snoop feature.  Without boring you with the
>>>> details (unless you want them) I am able to Snoop on an operator
>>>> regardless of whether or not they are on an active call.  However, the
>>>> only way the Whisper option works is if they are on an actual call.  The
>>>> only difference internally is there are two channels connected through a
>>>> central bridge.  Otherwise, the operator's channel is the only one in
>>>> that bridge.
>>>>
>>>> Since I can hear the operator regardless of the current call situation
>>>> I'm assuming there must be code in the Snoop option to mute the operator
>>>> if a call is not active?
>>>>
>>>
>>> There is no code to do that. What whispering does require though (for
>>> both Chanspy and Snoop channels) is a constant media stream out to the
>>> channel. It's likely that in the specific scenario there is nothing
>>> generating a stream and thus nothing to whisper into.
>>>
>>> There's an open issue[1] to remove this requirement but I know of noone
>>> currently working on it.
>>>
>>> [1] https://issues.asterisk.org/jira/browse/ASTERISK-24397
>>
>>
> Well nuts. Looks like my theory wasn't right :-)
>
> I wonder - as a workaround until that issue is addressed, you *may* be
> able to force the Whisper by starting Silence on the target channel first:
>
>
> https://wiki.asterisk.org/wiki/display/AST/Asterisk+13+Channels+REST+API#Asterisk13ChannelsRESTAPI-startSilence
>
> That *should* start silence frames going to the target of the Snoop
> channel, at which point, there's at least something flowing through to
> allow the audiohook to start sending Whispered audio.
>
> (If I'm wrong, Josh will tell me why :-)
>
> --
> Matthew Jordan
> Digium, Inc. | Director of Technology
> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
> Check us out at: http://digium.com & http://asterisk.org
>
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