What's a calling card? What function does it have?

The telephone business card is a short message advertisement launched by China Telecom. This product mainly provides SMS automatic sending service. After the mobile phone calls the fixed telephone, it will automatically send the message preset by the customer to the calling mobile phone, and the content of the message can be freely written by the customer, so as to satisfy the customer's use of the fixed telephone for product promotion or promotion information and other related content. The telephone name card has the following functions: the whole network mobile phone users can dial the fixed-line telecommunication line with the telephone name card function and receive the preset short message after hanging up. Mobile phone users in the whole network can receive preset short messages by dialing the telecom mobile phone with communication assistant, and there will be no situations such as connection failure, busy line, power off, long-term non-answer, hanging up, etc. For more service benefits, click "official website" below. Customer service 324 will answer your questions.