You can send text messages. Take Alibaba Cloud as an example: SMS is a communication service provided by Alibaba Cloud, which supports quick sending of SMS verification code and SMS notification. The exclusive channel of triple play is interconnected with the port number transfer platform of the Ministry of Industry and Information Technology in real time. Operator-level operation and maintenance guarantee, real-time monitoring, automatic switching, and the arrival rate is as high as 99%.

The short message service API provides the functions of sending short messages, inquiring the sending status, sending short messages in batches, setting short message signatures and templates, etc. After the signature and template are added to the SMS service console and approved, the SMS service API can be called to complete SMS sending and other operations.

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Because voice calls are transmitted over the Internet, VoIP is considered as a subversive alternative to traditional telephone services. It is understood that according to internationally recognized classification methods, VoIP has four implementation methods: Phone-Phone, Phone-PC, PC-Phone and PC-PC.

However, in the Catalogue of Telecommunication Services issued by the Ministry of Information Industry of China, IP phones of Phone-Phone and PC-Phone are clearly defined as the first kind of basic telecommunication services, and only a few basic telecommunication operators are qualified to operate. Whether the other two forms of expression belong to basic business or value-added business has been inconclusive.

Alibaba Cloud-SMS-Introduction.