# FAQ Managing your PortSIP PBX doesn't have to be hard. In this FAQ, we answer *everything* you ever wanted to know about PortSIP Unified Communications solution and then some. The telephone system hasn't changed much since Alexander Graham Bell invented it 143 years ago. Unlike traditional phones, UC calls take place over the IP network using an IP PBX that is deployed On-premise or Cloud platform. Even if Voice over Internet Protocol is new to you, or you want to brush up on how VoIP works, you'll enjoy these comprehensive FAQs. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://support.portsip.com/portsip-communications-solution/faq.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.