Siemens M20 error sending SMS

[Paulo Rodrigues]

Hello,

reading the gnokiirc conf file, I thought gnokii supported this model, but perhaps I'm wrong? I tried sending an SMS with

echo hi | gnokii --sendsms 93920XXXX

but got an error:

GNOKII Version 0.6.22
Couldn't read /root/.gnokiirc config file.
Couldn't read /root/.gnokiirc config file.
SMS Send failed (Data format is not valid.)

This is my gnokiirc file:

[global]
port = /dev/ttyS0
model = AT
initlength = default
connection = serial
use_locking = no
serial_baudrate = 19200
serial_write_usleep = 1
smsc_timeout = 10
[xgnokii]
allow_breakage = 0
[gnokiid]
bindir = /usr/sbin/
[connect_script]
[disconnect_script]
[logging]
debug = off
rlpdebug = off
xdebug = off

Am I missing something?

Thanks!