Expected [+CMGS: ] received [+CME ERROR: invalid input value]: For SMS alerts

[linuxlover.chaitanya]

Hello all,

I am new here on Zabbix forums and toZabbix as a whole.
I have deployed Zabbix on Cent OS 6 64 bit system and on a whole I am really happy with it.
I have been able to add servers to monitoring and make some few changes and add email alerting and actions. I have not yet tweaked graphs and templates and use the default.

Now with the issue.
I have been trying to use GSM modem connected to system using serial port to send SMS alerts. But somehow Zabbix is not able to send the alerts on SMS.

Expected [+CMGS: ] received [+CME ERROR: invalid input value]

This is what the error in the audit logs look like. And as there is no CME error code, I have not been able to decipher what went wrong and where and how to correct it. I am not sure what Zabbix is expecting and what it is receiving.
I have searched Zabbix forums and google for the error but have found nothing. I may be searching something wrong.
Anyone who has this error before or has any idea where should I start?

PS: I am able to send SMS using minicom.

Any help would be highly appreciated.

Regards
Chaitanya

[Prometej]

FILE sms.c

#define>ZBX_AT_ESC<---->"\x1B"
#define ZBX_AT_CTRL_Z<->"\x1A"

<------>zbx_sms_scenario scenario[] =
<------>{
<------><------>{ZBX_AT_ESC<--->, NULL<><------>, 0},<->/* Send <ESC> */
<------><------>{"AT+CMEE=2\r"<>, ""/*"OK"*/<-->, 10},<>/* verbose error values */
<------><------>{"ATE0\r"<----->, "OK"<><------>, 10},<>/* Turn off echo */
<------><------>{"AT\r"><------>, "OK"<><------>, 10},<>/* Init modem */
<------><------>{"AT+CMGF=1\r"<>, "OK"<><------>, 10},<>/* Switch to text mode */
<------><------>{"AT+CMGS=\""<->, NULL<><------>, 0},<->/* Set phone number */
<------><------>{number><------>, NULL<><------>, 0},<->/* Write phone number */
<------><------>{"\"\r"><------>, "> "<><------>, 10},<>/* Set phone number */
<------><------>{message<------>, NULL<><------>, 0},<->/* Write message */
<------><------>{ZBX_AT_CTRL_Z<>, ""<--><------>, 20},<>/* Send message */
<------><------>{NULL<-><------>, "+CMGS: "<--->, 30},
<------><------>{NULL<-><------>, ""<--><------>, 10},
<------><------>{NULL<-><------>, ""<--><------>, 5},<->/* ^Z */
<------><------>{NULL<-><------>, NULL<><------>, 0}
<------>};

<------>zbx_sms_scenario<------>*step = NULL;
<------>struct termios<><------>options, old_options;
<------>int<---><------><------>f, ret = SUCCEED;

Edit as I have in the code file sms.c.
Recompile zabbih server and the problem is still with the three-error sending SMS (although sent 3 SMS) should disappear. Good luck to you.

manual AT command from GSM Modems