I remember that Google has voice verification code and SMS verification code.
1. Domestic SMS verification codes can be implemented using SMS cats (wavecom, etc.) (international ones can also be used, but it is estimated to be extremely expensive at your own expense). If you implement it by yourself, it is recommended to buy ultra-cheap SMS cards on wavecom + Taobao, and there is no limit on concurrent SMS cards. . Of course, to save trouble, you can use the services provided by some domestic companies.
2. There are some free text messaging services abroad (Pan Qiang can find them later and determine the phone number. If you are abroad, use this channel. Combine it with VPN)
3. I have thought about whether I can use a service similar to Skype to implement international voice verification code services (although the rates are expensive, they are much cheaper than domestic operators).
4. You can use TTS to realize text by voice.
I remember that Google has voice verification code and SMS verification code.
1. Domestic SMS verification codes can be implemented using SMS cats (wavecom, etc.) (international ones can also be used, but it is estimated to be extremely expensive at your own expense). If you implement it by yourself, it is recommended to buy ultra-cheap SMS cards on wavecom + Taobao, and there is no limit on concurrent SMS cards. . Of course, to save trouble, you can use the services provided by some domestic companies.
2. There are some free text messaging services abroad (Pan Qiang can find them later and determine the phone number. If you are abroad, use this channel. Combine it with VPN)
3. I have thought about whether I can use a service similar to Skype to implement international voice verification code services (although the rates are expensive, they are much cheaper than domestic operators).
4. You can use TTS to realize text by voice.