This paper examines the structure and bottlenecks of a business-to-business (B2B) inside-sales conversion funnel for healthcare software-as-a-service (SaaS) products, based on a thirteen-week participant-observation case study conducted within the Healthcare vertical of a video-collaboration OEM operating in India. The study decomposes the outbound sales funnel into three discrete stages

— calls attempted to calls connected, calls connected to demonstrations scheduled, and demonstrations scheduled to quotations sent — and computes stage-wise conversion ratios rather than relying on a single aggregate conversion figure. Findings indicate that the connect stage, constrained primarily by the quality of outbound contact data rather than by pitch quality or persuasive skill, accounts for the overwhelming majority of funnel attrition (an estimated 70–75 percent loss), while the demonstration-to-quotation stage — once a physician had actually viewed the product — converted at a comparatively high rate (60–65 percent). This pattern suggests that the binding constraint on funnel performance in this context is access to a decision-maker's attention, not the ability to persuade once attention is secured. The paper situates these findings within established sales-funnel, technology-adoption, and lead-scoring literature, and argues that funnel-leakage diagnosis should precede any investment in persuasion training or script redesign when the connect stage is the primary bottleneck. Practical recommendations — verified segment-specific contact data, a healthcare-specific objection-handling framework, and lightweight lead-scoring — are proposed and sequenced into a phased implementation roadmap. The study's single-case, single-vertical design limits statistical generalisability, and the findings are presented as an illustrative, theory-informed case rather than a representative sample of B2B healthcare-SaaS sales performance.

Keywords: inside sales; sales funnel; funnel leakage; lead conversion; healthcare SaaS; tele-consultation; B2B sales; cold calling; technology adoption