> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/telecom-references/voice-and-media/transcoding.md). # Transcoding Transcoding is the conversion of call media from one voice encoding algorithm (also known as a codec or a vocoder) to another. This is done to bridge differences in capabilities between telecommunications systems supporting the calling and the called parties. For example, when two end point devices involved in a call do not share a common vocoder among their vocoder sets. ### TelcoBridges and Transcoding TelcoBridges devices support transcoding among a number of popular [voice codecs](/telecom-references/voice-and-media/voice-codecs.md) whether during calls from TDM-to-IP networks, IP-to-TDM networks or IP-to-IP networks featuring different end-point device capabilities. ### References * [ProSBC transcoding solution](https://prosbcdocs.telcobridges.com/) * [Wikipedia article](http://en.wikipedia.org/wiki/Transcode) --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://prosbcdocs.telcobridges.com/telecom-references/voice-and-media/transcoding.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. 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.