We need to present a series of queue messages and queue music to callers, then repeat the series until the call is answered. One of the messages informs callers that they can press "one" at any time during their call to initiate a callback. So this use-case is fairly standard. How do you configure architect to listen for exact DTMF digit within a loop? Enabling barge, just moves the caller to the next node in the sequence. We could Collect Input at each node, but that is a limited threshold window to allow the caller to enter #1 and not truly anytime. For example the caller is in the middle of listening to hold music and decides to leave a callback, so they press 1 per the previous queue message instruction.
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