Operating system name and version: SMP Debian 3.7.2-0+kali8 i686 GNU/Linux
Version of smsd: smstools3-3.1.15.tar.gz
Smsd installed from: sources
Name and model of a modem / phone: nokia 22
Interface: usb to serial

When tried with minicom, I get:

AT+CREG?
+CREG: 0,

OK

So the program does not see it as registered, however I can send SMSs with minicom.

Is this a problem with initialization / provider / modem?

Thank you for your help.