sms - SMS spoofing (PDU)?

Question

I was trying to replace the sender address with an alphanumeric text by adding a UDH to the PDU string? Unfortunately this didn't work. Maybe because the spoofed address is being replaced by the SMSC?

Answer 1

在移动调制解调器的普通手机上，您无法通过 SMS-SUBMIT PDU 更改发件人地址。SMSC 会将发件人地址更改为您的 ME 地址（移动调制解调器或手机）。

如果您通过 HTTP、SMPP 或 SMTP 直接连接到 SMSC，则只能更改发件人地址，例如取决于 SMSC 服务提供商。