Operating system name and version: Centos 5.3
Version of smsd:
Smsd installed from: sources
Name and model of a modem / phone: wavecom fastrack
Interface: USB

when using prepaid sim card, the sms work just fine.
after change to postpaid sim card, none of the sms sent, i ve tested the postpaid sim card to send sms via handset (my phone) and its fine. but when i put the postpain sim card to my modem, i wont send anything. no error found on my log file.
then i change back to prepaid sim card, it's send sms again just fine.
then change again to postpaid sim card, the trouble back again.


i need to use postpaid sim card,

is there any history similar to my problem, please give me a clue where should i turn my head on.

thank you

Do you have PIN for the postpaid card?
You should post your log here so we can take a look. The log is located here: /var/log/smsd.log

thank you for the fast replay, i will paste my log here, but not now, i ll use postpaid card, then restart the services, then paste then log here.

but there is one thing i should ask, is postpaid got anything todo with pin number?

Without a log I don't know what to say.
The only difference I can think of is the Pin code, without the log.