Voice/Audio Not Transferring in ARI Bridge Between Customer and Agent Channels

Asterisk Asterisk APIs
1

Topic/Body:
I’m building a call center using Asterisk 18 with ARI (Asterisk REST Interface). The call flow works (calls connect), but two-way audio is not bridging properly.

Setup:

  • Customer calls in → enters

    myapp

    Stasis application

  • Agent (extension 100/101) is a PJSIP endpoint with

    context=ari-agents

  • When agent answers, I create a Local channel:

    Local/100@local-bridge

  • The

    local-bridge

    context answers the channel before Stasis

  • I create a bridge and add both customer and agent channels

Issue:
After bridging, no audio flows in either direction. The channels are in the bridge, but silence.

What I’ve tried:

  • Added

    Answer()

    in

    local-bridge

    context before

    Stasis()

  • Updated Java code to use

    Local/

    + extension +

    @local-bridge

  • Added

    isChannelInBridge()

    polling every 2 seconds

  • Verified bridge membership via ARI

Configuration:

  • pjsip.conf: agents use

    context=ari-agents

  • extensions.conf:

    [ari-agents]

    and

    [local-bridge]

    contexts

  • Java: AriWebSocketClient handles bridging logic

Question:
What am I missing in the bridge setup? Is the Local channel approach correct, or should I use a different method to connect the agent to the customer bridge?

2

What have you done to verify that audio is reaching Asterisk?