If you create a call answering rule but don't specify an action, your caller will hear the following prompt: "You have reached the mailbox of . Please call back later. Goodbye." and the call will end.
You can ask your admin to change the greeting language for everyone in your organization. Your admin should see this topic for instructions: Change the default language for greetings and emails.

Important note: In some states, such as California, it’s illegal to record calls or conversations without permission from all parties involved. If that’s the case, ask your call participants if it’s OK if you record the conversation before you start recording. Then, ask again once you do start recording—so you have their permission on record. Alternatively, if you state “I’m recording this call for [whatever purpose]” and your contact stays on the line, that’s OK as well.
That’s why it’s critical that each customer interaction with your business is consistent, positive, and represents the values and personality of your company. This includes your storefront, website, social media presence, emails, and every interaction you have with your customers, both online and in-person.