I was working with a client on enabling SCOM 2007 to send SMS (text) messages to cell phones and pagers. There was an excellent blog located at this link which we used as a basis for our configuration. However, we were running into some major problems with our ‘MultiTech Systems USB GSM_GPRS Wireless Modem’.
As it turns out, our modem was configured for 115K baud, which didn’t seem unusual at first. But when SCOM attempted to send an alert we got an error saying "Sms error ‘Baud rate test failed’ (16011)." So we cut the baud rate in half and then got "Sms error ‘DTR call failed’ (16009)." Hmmm.
After more research, we reconfigured the modem to 9600 baud using the AT+IPR=9600 command AND set the Windows modem properties to 9600 baud . Magically, everything started working! When you reconfigure your modem to 9600 baud, make sure you save the settings in its non-volatile memory so they are not lost during the next power cycle.
TTYL
