> ## Documentation Index > Fetch the complete documentation index at: https://docs.open.cx/llms.txt > Use this file to discover all available pages before exploring further. # Phone Support > Run AI voice support on your own phone numbers — buy a number, configure the base prompt, pick knowledge sources, and hand off to a human agent on demand. Open can also provide phone support with: * **Extra realistic AI voice** that can understand and respond to your customer's questions on the phone. * **It can take actions** using the actions feature ([learn more](/actions/introduction)). * The phone conversation **will be recorded and transcribed into text** and will show up in the Open inbox. * The **AI can transfer the conversation to a human agent** if the customer is not satisfied with the response. ### Buying a Phone Number To get started with phone support, you can buy a phone number from the dashboard, which will generate a US phone number for you. From there, you can change the AI base prompt to be more relevant to your business, making the phone support more effective. ### Changing the Base Prompt You can change the base prompt to be more relevant to your business, making the phone support more effective. In general, keep in mind the following: * The base prompt should be short and concise (Remember that the conversation will be on the phone). * Avoid using complex terms and try to keep it simple. * Try to give the AI a clear understanding of what you want it to do (by providing action, knowledge base, and other information). ### Handing Off to a Human Agent If the customer is not satisfied with the response, the AI can transfer the conversation to a human agent. This is called handing off to a human agent. We support many languages, local numbers, and more. Feel free to reach out to us at [mo@opencopilot.so](mailto:mo@opencopilot.so) for any custom needs.