Can not send sms, Error code:28

Can not send sms, Error code:28 SearchSearch
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Hasbi Ali firdaus
New member
Username: Hasbi

Post Number: 1
Registered: 02-2015
Posted on Monday, February 16, 2015 - 05:16 am:   

how to solve problem for can't send sms Error code:28?
this i am use modem wavecome fastrack and i don't know, this modem can't to detect in nowsms
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 5204
Registered: 08-2008
Posted on Monday, February 16, 2015 - 05:00 pm:   


Have you ever been able to send a message with NowSMS, or do all attempts result in this error?

The description for CMS error 28 is:

"Unidentified subscriber"
This cause indicates that the subscriber is not registered in the PLMN (i.e. IMSI not known).

Translating this to English, it means that the service provider doesn't know who you are.

I find that very odd. Are you sure the SIM card in the modem is active?

The only other idea I have is to go into Properties of the modem in the NowSMS SMSC list, and try different values for "SMS Access". Try GSM first, then try GPRS to see if those settings make a difference.

NowSMS Support