Summary
In this chapter, you learned why it is important to have a user and administrator portal. It is a piece of software that you should pay a lot of attention to. Some VoIP providers fail to allocate the time and resources to the important task of building the portal. OpenSIPS is an amazing SIP proxy, but a SIP proxy is just one of the components in a VoIP solution. Without good administrator and user interfaces, a VoIP provider project may easily fail. You learned how to install and manage users and domains and how to customize their appearance. For now, we can only call the registered subscribers. In the next chapter, we will learn how to send and receive calls to the PSTN.
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