asterisk users - Jun 2020 - Any api (agi/ari/ami) equivalent of "core show calls"?

I'm parsing ` sudo asterisk -rx "core show calls" | grep active |
head -c 1
` as an external call from within the Asterisk dialplan then passing it to
agi, but this seems really hacky and ugly.

However, I cannot find any ARI/AGI/AMI function (or global variable I can
get with agi) which shows me this.

Any ideas?!?

In case it helps and you're wondering why...
I need to ensure that a MusicOnHold stream is only running when there's a
caller on hold and listening.
To do that, I need to rewrite and reload the moh.conf file when the caller
hangs up IF there are no other callers (ie there's just 1 active call as
the caller hangs up), and then  rewrite and reload again when there's a new
caller.
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On Sat, 13 Jun 2020, Jonathan H wrote:
> I need to ensure that a MusicOnHold stream is only running when there's
> a caller on hold and listening.To do that, I need to rewrite and reload 
> the moh.conf file when the caller hangs up IF there are no other callers 
> (ie there's just 1 active call as the caller hangs up), and then  
> rewrite and reload again when there's a new caller.
How about ARA to configure MOH and then just update the database.

-- 
Thanks in advance,
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Steve Edwards       sedwards at sedwards.com      Voice: +1-760-468-3867 PST
             https://www.linkedin.com/in/steve-edwards-4244281