Your prospects are under the impression that a brand will be always available to cater to them, now for some circumstances, a few brands might not be able to serve their prospects 24/7 which is why creating a voicemail message becomes useful.
A carrier visual voicemail app, if installed on the device, can disable the AOSP VVM client. This is achieved by checking if a package with a name matching the KEY_CARRIER_VVM_PACKAGE_NAME_STRING parameter is installed.

Hello, you have reached the law offices of X. Unfortunately, I am attending to another client right now, but I will return your call as soon as I can. Please leave me your name, reason for calling, and your number so I can connect you with the right department. This is far more professional than the other examples given in this guide. Lawyers should always be formal, smooth, and confident. Nobody is calling to make friends. They’re calling to get the job done. That’s why your message should be all business.
For each of the greetings you want to be recorded, write your script. You can write different scripts for the main greeting and for the different extensions i.e. the voicemail greeting, the transfer message and the name. You can save the script and add it to the order after completing each script. Once you have completed all your scripts, you can check out to complete your order and at this stage, you will be charged for your order.