Use UDH via API
Send binary messages or SMS with your own User Data Header (UDH) via our API. Only available for Direct SMS.
| Parameter | Value |
| -------- | -------- |
| `udh` | User Data Heder. Please provide it as HEX value |
| `text ` | Text message – if this is a HEX value and UDH is provided, we send this SMS as binary |