Most problems on a live line fall into a handful of patterns. Each has a characteristic cause.
Cause: the caller volunteered several details at once and the agent is working through a fixed question order.Fix: state explicitly that information already provided should not be requested again, and list what to collect as a set rather than a sequence.
Cause: end-of-speech detection firing on a natural pause. Common with callers who think while speaking, and with older speakers.Fix: this is rarely an instruction problem. Check line quality first — noisy lines and speakerphones make it much worse. If it persists on a specific line, raise it with your Voho contact rather than rewriting instructions.
Cause: a code-switch pulled the reply language across with it. Typically triggered by an English product name inside an Arabic sentence.Fix: set the reply language explicitly rather than leaving it to follow the caller.
See Voices and languages.
Cause: it was asked something it has no action for, and no instruction covering what to do instead.Fix: name the boundary and give it somewhere to go. This is the failure with the highest cost — an invented reference number or delivery date reaches the caller as fact.
Cause: the action fired before enough was collected, usually because its description does not name the moment.Fix: put the precondition in the action description itself — “use only once you have X, Y, and Z” — rather than only in the instructions.See Actions.
Cause: almost always a slow action. The caller waits in dead air while your system responds.Fix: have the agent narrate before slow actions, and put a timeout on them. See Latency.
Cause: either the agent cannot do what callers actually want, or it is refusing transfers.Fix: read twenty escalated calls. If they cluster on one request type, build that capability. If they are scattered, your handoff is too hard to reach. See Handoff.
Cause: tested only by colleagues, who share vocabulary, accent, and patience that real callers do not.Fix: retest with people who sound like your customers. See Testing.

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When it is not the instructions

Some problems are not yours to fix. Consistent mishearing of a particular accent, audio artefacts, or interruptions that persist across every line are platform issues. Gather three or four example calls and raise them with your Voho contact — specific calls get diagnosed, general reports do not.