In the context of digital transformation and cloud adoption, the text discusses the importance of telephony and carriers in communications networks, emphasizing the challenges of using bundled UCaaS products that rely on multiple hidden carriers, which can add costs and reduce control over call routing and quality. It introduces the concept of "unbundling," where businesses separate different layers of the communication stack to maintain flexibility and reduce unnecessary costs, and highlights the benefits of the "Bring Your Own Carrier" (BYOC) model, allowing companies to choose their own network suppliers to improve coverage, connection quality, and regulatory compliance. This approach is particularly beneficial for aaS companies, as it enables them to focus on their core products while outsourcing network services to specialized carriers like Voxbone, thus optimizing performance and scalability.