There is a question about sending short messages in groups.

I don't know what kind of mobile phone you are. Ordinary Nokia phones can send messages in groups. In the recipient column of short message, you can add multiple recipients. At this time, enter the mobile phone numbers of all your customers and they will be sent automatically. And the person who receives the text message can't see other people's numbers, which is the same as sending him one alone. Is there a problem?