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Understanding call drops in voice ai: a closer look

AI Tools Face Heat Over Call Failures | Users Demand Answers

By

Kenji Yamamoto

Nov 28, 2025, 11:54 AM

Edited By

Sofia Zhang

2 minutes needed to read

A frustrated person on the phone with a broken connection, showing a drop in call quality

A growing frustration has emerged among developers and users of voice agents over the unsolved problem of call drops and failures. Despite claims of 99.9% accuracy, complaints about 15% of calls derailing or dropping are common, leaving many puzzled about the underlying causes.

Lack of Visibility is Key

Users have pointed out that the real issue isnโ€™t about enhancing models but a glaring lack of observability in the current systems. As one source noted, โ€œVoice AI today feels like backend engineering before Datadog existed.โ€ Without transparency, debugging becomes nearly impossible.

Guardrails Create Blind Spots

Many developers lament the guardrails built into AI systems. Instead of protecting users, they often hide failures, resulting in unexpected silent failures or mid-call stalls. For example, one healthcare client's AI abruptly stopped providing appointment information after misinterpreting safety regulations. The logs appeared clean, but the call results were anything but.

A New Solution is in Play

In response to these challenges, a new approach has emerged. The team behind Rapida has developed comprehensive per-call observability tools. This includes:

  • Guardrail activation tracing

  • Safety refusal logging

  • Timing and latency metrics for each component

  • Granular audio breakdowns from ASR to telephony

  • Telemetry for every decision made by the voice agent

One developer stated, โ€œWith this observability, it's possible to debug voice agents like backend systems.โ€

Growing Consensus Among Users

The feedback from various voices in the community shows a strong desire for solutions that provide deeper insights into AI decision-making. As one commenter expressed, "The per-call observability is exactly whatโ€™s missing. We've been building these complex voice pipelines with zero visibility.โ€ Another shared, โ€œSilent model refusals are killers. They look like successes but wreck the experience.โ€

Key Points to Consider

  • ๐ŸŒŸ 15% of voice calls are reported to derail or drop randomly, raising significant concerns.

  • ๐Ÿ” Users criticize existing guardrails for masking failures, complicating debugging.

  • ๐Ÿ’ก New solutions like Rapida focus on enhancing visibility and observability in voice AI.

As developers push for progress, the industry remains at a crossroads, needing effective tools to boost reliability and trust in AI technologies. Watch for updates as solutions evolve.

Future Trends in Voice AI Reliability

As the demand for reliable voice AI systems grows, there's a strong chance weโ€™ll see more companies adopt observability tools similar to Rapida. Experts estimate around 70% of developers will prioritize transparency in AI decision-making processes over the next few years. This shift is likely driven by the ongoing frustrations among users regarding call drops and hidden failures. Moreover, as businesses emphasize customer experience, those that integrate better monitoring solutions could gain a competitive edge, potentially leading to wider acceptance and trust in voice technologies.

Echoes of the Past: The Great Telecommunications Shift

This situation resembles the evolution of telecommunications in the early 2000s when mobile networks faced significant call drop rates due to inadequate infrastructure. Back then, providers who adapted by investing in better network monitoring and infrastructure were the ones who flourished. As is often the case, transformative change springs from the necessity to solve evident flaws. Just as that era marked a turning point for voice reliability in mobile communications, the current challenges in voice AI may spur a similar revolution, pushing the industry into a new age of enhanced visibility and resilience.