What's the difference between voice verification code and SMS verification code?

There are two main reasons for the difference between the two. On the one hand, it is the factor of experience. There is a problem with the arrival rate of short messages, and many short messages will be lost, especially such verification notification short messages. No SMS service provider can achieve the arrival rate of 100%, and there are other factors such as SMS control in Tibet, so SMS verification usually fails about 5%~ 10% of users. In contrast, although the experience and convenience of voice verification can't be compared with short messages, voice verification can ensure that the whole process goes smoothly when it is not received.

At present, the focus of mobile Internet merchants' repeated discussion is user experience. From the perspective of user experience, it is mainly reflected in speed and arrival rate, especially when users register, check SMS, express logistics notification and ticketing information notification, and the arrival rate, speed and visibility of SMS verification code are particularly heavy. No channel service provider in the market can promise to achieve the development rate of 100%. Of course, this is influenced by cell phone signals, blacklist numbers and other factors. The user experience and convenience of SMS verification code are incomparable with voice verification code, but telephone verification can ensure the whole process to go smoothly when SMS verification code cannot be received.

In terms of information security: the information of SMS verification and voice verification is closely related to people's lives. With the interference of criminals, information security has become an increasingly important issue for enterprises. With the popularity of smart phones, the protection of many private information has become fragile as paper. Because the mobile phone verification code short message requires that the verifier must be a real user, there are even card merchants who specialize in SMS verification code service and customers who use the website to make a profit.