Modem firmware EG06ALAR02A07M4G_01.004.01.004
Router OS 7.13.3

SMS configured as follows

[admin@MikroTik] /tool/sms> print
status: off
receive-enabled: yes
port: lte2
channel: 0
secret:
allowed-number:
sim-pin:
last-ussd:

Have tried several formats of allowed numbers (USA) such as 1XXXXXXXXXXX +1XXXXXXXXXXX 01XXXXXXXXXXX +01XXXXXXXXXXX 001XXXXXXXXXXX and +001XXXXXXXXXX
Have tried a secret

Sending a text to the device results in the following message in the log (logging gsm, debug )

rcvd unsolicited AT for lte2: +CMTI: "SM", 14

Nothing ever appears in the INBOX. Sending an SMS from ROS works every time.

Thanks in advance for any help or suggestions.