# Webhook CDRs ## What is a CDRs? Call Detail Record (CDR) - is a record containing information on used services like mobile data. The information inside CDR can vary from case by case scenario, but in general it includes information on what SIM has used the service, what type was used, when the service was used and much more. CDRs are a valuable source of information for telecom or any other business to have, since it helps to analyze SIM services usage, users behavior, monitor traffic, used network and also helps with accounting and billing. {% content-ref url="/pages/X8jY8x3u3m3ESAwoqzfk" %} [Webhook DATA CDR](/hub/integrations/webhook/webhook-cdrs/webhook-data-cdr.md) {% endcontent-ref %} --- # 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://docs.monogoto.io/hub/integrations/webhook/webhook-cdrs.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.