NETGEAR Nighthawk M5 User Manual page 19

4. Use the keypad to type the phone number to which the message will be sent.
As you enter digits, the phone number appears in the To: field.
5. Tap Next.
A keypad for entering the message appears.
6. Type a message and tap Send.
The Message Sent message appears and indicates that the message was sent.
Use Your Mobile Router
Nighthawk M5 5G WiFi 6 Mobile Router
19 User Manual