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Building Conversational AI: Navigating the Differences between between Phone and Drive-Through


Introduction: The Evolving Landscape of QSR Automation


The transition of conversational AI from phone-based systems to drive-through operations marks a significant shift in the QSR (Quick Service Restaurant) industry. While phone systems have long been a staple, drive-throughs are now emerging as the primary revenue channel, accounting for 70-80%+ of business in modern QSRs. 


Integration Challenges: From Simplicity to Complexity


Phone-based AI, a relatively straightforward setup involving number forwarding and optional POS integration, contrasts sharply with the multifaceted nature of drive-through automation. Integrating AI into the drive-through requires a complex intertwining with existing systems, including staff audio, loop timers, Order Confirmation Boards (OCB), Kitchen Display Screens (KDS), and the POS. This integration is a non-trivial task, often necessitating on-site customization due to the unique setup of each restaurant.


Conversational Dynamics: Efficiency vs. Engagement


While phone interactions allow for a friendly, upsell-focused dialogue, drive-through communication prioritizes Speed of Service (SoS) and throughput. The key here is to maintain a balance - ensuring a swift, efficient ordering process without compromising on customer engagement. Upselling, though beneficial, should not impede service speed, as a faster throughput often outweighs the marginal increase in average checks.


Audio Quality: A Persistent Challenge


A major hurdle in drive-through AI is overcoming poor audio quality. Factors like multiple speakers, engine noise, and environmental sounds create a challenging setting for Automatic Speech Recognition (ASR). In contrast, phone systems, despite their occasional background noises and signal issues, present a much clearer environment for ASR technology.


Conclusion: Future Trends and Market Potential


The core technology underpinning both phone and drive-through AI systems remains largely similar, with a growing trend towards Large Language Models (LLMs). The shift to LLMs presents an opportunity for those already leveraging this technology, as traditional NLU and NLP investments become less relevant. While drive-throughs are currently in the spotlight, the phone ordering system, easier to implement and refine, still holds significant market potential. The evolving landscape of conversational AI in QSRs will be fascinating to watch, with both channels offering unique opportunities and challenges.



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