With the rapid proliferation and advancement of mobile communications, many E-commerce applications have taken advantage of these technologies resulting in what is referred to as mobile commerce or "M-commerce." Increasingly, Fixed-Mobile Convergence provides mobile users seamless roaming among different environments such as cellular, WiFi, WiMax, and satellite communications. These different environments are not compatible with respect to bandwidth, range, mobility support, and error rate. On the other hand, emerging M-commerce applications have different quality of service (QoS) requirements (i.e. latency, loss rate, jitter, and security) due to their different content. This paper addresses the impact of incorporating various QoS parameters in M-commerce within different technical and business environments. Employing QoS parameters in M-commerce business is particularly important for service aggregation, optimal service pricing, efficient resource allocation, and revenue sharing among different business partners.