As I mentioned before, Google Voice is currently only available in the United States, so it may not be possible to open a Google Voice number directly from Nigeria. However, there are a few potential workarounds that you could try:
-
Use a virtual private network (VPN) service to change your IP address to a U.S. location. Then, sign up for a Google Voice account using a U.S.-based phone number and verify the account by following the instructions provided by Google.
-
Use a forwarding service that will allow you to forward calls and text messages from a U.S.-based phone number to your Nigerian phone number. Then sign up for a Google Voice account using the U.S.-based phone number provided by the forwarding service.
Please note that these methods may not be guaranteed to work and they may not be compliant with the Google Voice terms of service, so you should be careful when using such services. It is also important to note that using automated bots or services to create multiple Google Accounts and using them with Google services is against Google's terms of service and they may terminate your accounts if they detect such behavior. Also, Using a VPN to create a Google account may not be compliant with Google's terms of service.
It's also worth noting that even if you open a Google Voice number it might not work for all the services provided by Google Voice, such as call forwarding, text messaging, and voicemail. Additionally, Google Voice is not yet available in all countries, so it might not be available in Nigeria yet.
Check this article about how to get a Google Voice account in Nigeria