No audio with Asterisk ARI "Hello-World" test

[mvega]

I am new to using ARI and going through the ARI Hello World example in the wiki

https://wiki.asterisk.org/wiki/display/AST/Getting+Started+with+ARI

I have configured ari.conf as such

[general]
enabled = yes  
pretty = yes 

[mtest]
type = user
read_only = no
password = test123

and the test numbers in extensions.conf as such

[default]
exten => 1000,1,NoOp()
 same => n,Answer()
 same => n,Stasis(hello-world)
 same => n,Hangup()

exten => 2000,1,NoOp()
 same => n,Answer()
 same => n,Playback(hello-world)
 same => n,Hangup()

When I dial the 1000 extension I can see the output in the CLI and in the wscat but have no audio. Dialing the other test extension has audio without issue. I can see the RTP packets in a trace as well.

 -- Executing [1000@default:1] NoOp("SIP/MTest-00000010", "") in new stack
    -- Executing [1000@default:2] Answer("SIP/MTest-00000010", "") in new stack
       > 0x7f99b40529c0 -- Strict RTP switching to RTP target address x.x.x.x:5066 as source
    -- Executing [1000@default:3] Stasis("SIP/MTest-00000010", "hello-world") in new stack

the app and user appear to be registered, and I do see the output in wscat as per the wiki article.

phast*CLI> ari show apps
Application Name
=========================
hello-world
phast*CLI> ari show users
r/o?  Username
----  --------
No    asterisk
No    mtest

what is causing the audio problem when stasis is used?

[david551]

Have you tested it with simple dialplan?

The normal reasons for no audio are blocking by firewalls, or a lack of NAT, for the port range used for RTP. It can also happen if you are behind NAT, but haven’t set up your public address.

[jcolp]

Did you actually follow the entire page, including executing the curl request to play back the file?

[mvega]

that seems to have been the issue. i didn’t realize the curl command was passing the audio file. I thought executing the stasis call was the trigger. thank you

[jcolp]

Nope. Stasis just puts the channel into the application. It still has to be told what to do.