Abstract
Due to the network speed is growing rapid and more popular, there are many services provided to solve the cross-region problems. If we want to participate the activities, we don’t need to go to the real place where the activity is located or even watch the Live TV. However, we can directly use Internet to join the activities, even interacting with remote people is not a problem. Additionally, when participating in important seminar, supporting a stable and reliable way for remote audience to interact with host is an important issue. Moreover, providing the efficient method for online seminar to process is also a challenge. What’s important, these indicated scenarios are addressed appropriately in this paper. For the purpose of providing online seminar a better service, we use PSTN, which is more reliable and stable, for audience to communicate with each other. Besides, our Cloud Bridging Switch (CBS) can bridge calls as a conference call; thus, the audience not only can talk with host but also can broadcast theirs conversation to the other audience. Moreover, we offer a Q&A service platform that audience can raise their questions for host to answer, and the questions are collected as a unified list for host to manage. Our system is able to collaborate with other webcast, web conferencing or online broadcasting platforms, the host could use broadcasting platform to broadcast video streaming, and use our system to process Q&A management by replacing the traditional way for sending voice such as VoIP phone. Our solution, which calls to question raiser via PSTN not only improves the stability but also supports online seminar’s discussion attending through mobile.