I’m using a MTD-H5 on a BeagleBone Black running Debian. I’m able to connect to the internet no problem. When I try to send SMS messages however I get an error.
My modem is on ttyACM0.
I’ve installed and use sms-utils. The command I issue is:
sms -d /dev/ttyACM0 send 1234567890
[ERROR] atcmd.c:atcmd_write:389: full_write failed: Resource temporarily unavailable
Any thoughts?