# 3CX - [How to configure our CTS Trunk on 3CX](https://kb.hostednetwork.com.au/support/services/voice-over-ip-voip/general/3cx-guides/how-to-configure-our-cts-trunk-on-3cx.md): This article covers how to configure 3CX using our CTS SIP Trunk service - [Resolving Call Quality issues on 3CX deployments](https://kb.hostednetwork.com.au/support/services/voice-over-ip-voip/general/3cx-guides/resolving-call-quality-issues-on-3cx-deployments.md): This article covers how to resolve the issue on audio in 3CX if its hosted in a Cloud Platform - [How to configure a SIP Trunk on 3CX](https://kb.hostednetwork.com.au/support/services/voice-over-ip-voip/general/3cx-guides/how-to-configure-a-sip-trunk-on-3cx.md): This article covers how to configure 3CX using our SIP Trunk service - [Changes to default 3CX Headers](https://kb.hostednetwork.com.au/support/services/voice-over-ip-voip/general/3cx-guides/changes-to-default-3cx-headers.md): This article covers modifying the 3CX headers to allow outbound calls to flow correctly through to VoIPnow. - [Responsibility Matrix](https://kb.hostednetwork.com.au/support/services/voice-over-ip-voip/general/3cx-guides/responsibility-matrix.md) --- # 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://kb.hostednetwork.com.au/support/services/voice-over-ip-voip/general/3cx-guides.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.