[b]Operating system name and version[/b]: Debian Squeeze
[b]Version of smsd[/b]: 3.1.11-1
[b]Smsd installed from[/b]: package repository Debian Squezee
[b]Name and model of a modem / phone[/b]: IISA modem GSM/GPRS
[b]Interface[/b]: serial

Dear, a pair of months ago I have installed the smstools with a same GSM modem and it was OK. Now I do the same in another server with the same OS and GSM modem, but when I try to send a SMS with the sendsms script I get this error:

GSM1: Signal Strength Indicator: (7,99) -99 dBm, Bit Error Rate: not known or not detectable
GSM1: Selecting PDU mode
GSM1: -> AT+CMGF=0
GSM1: Command is sent, waiting for the answer
GSM1: <- OK
GSM1: -> AT+CMGS=21
GSM1: Command is sent, waiting for the answer
GSM1: <- >
GSM1: -> 0011000A9122515662490000FF09E7F3D96C3E9BCF66.
GSM1: Command is sent, waiting for the answer
GSM1: <- +CMS ERROR: 302 (Operation not allowed)
GSM1: The modem answer was not OK: +CMS ERROR: 302 (Operation not allowed)
GSM1: Sending SMS to 2215652694 failed

What can be the problem ???

Thanks a lot.

Alejandritox