Right after the Gnokki Issues thread started a client was the victim
of an upstream connectivity provider's power outage. so I started
researching options to get the word out to the admins via SMS instead of
email-to-SMS when there is no internet connectivity.
I found the Teltonika T-Modem
Never used PCI GSM cards. We are using smstools and two Nokia 6310i connected
via serial port (rs232). It does great the
work on two nagios servers since 2001. I've tested an old Falcom A2 GSM modem
as well, with zero issues.
If you need send only sms an old/stable gsm phone does the work very
