Modem does not support SMS -- ERROR for Multi-Tech Verizon Modem

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SMS & MMS Technical Forum » NowSMS Support - SMS Issues (Product Support Only) » Archive through February 09, 2012 » Modem does not support SMS -- ERROR for Multi-Tech Verizon Modem « Previous || Next »
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Raffi Krikorian
New member
Username: Rkrikorian

Post Number: 12
Registered: 06-2008
Posted on Friday, August 05, 2011 - 05:08 pm:   

I'm trying to add a Multi-Tech MTCBA-C1-U-N3 for Verizon. SMS works via a terminal session, but I get the following error when I try to add it to NowSMS:
Modem does not support SMS --

ERROR
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 3394
Registered: 08-2008
Posted on Monday, August 08, 2011 - 12:44 pm:   

Hi Raffi,

What version of NowSMS are you using? Is it by chance an older version?

--
Des
NowSMS Support
Raffi Krikorian
New member
Username: Rkrikorian

Post Number: 13
Registered: 06-2008
Posted on Monday, August 08, 2011 - 03:53 pm:   

v2010.02.09
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 3403
Registered: 08-2008
Posted on Monday, August 08, 2011 - 04:10 pm:   

Hmm...maybe there are different firmware versions for that modem.

From a terminal session, what response do you get to the following commands?

AT+CSMS=0
AT+CSMS=1
AT+CSMS=?
AT+CSMS?
Raffi Krikorian
New member
Username: Rkrikorian

Post Number: 14
Registered: 06-2008
Posted on Monday, August 08, 2011 - 04:42 pm:   

AT+CSMS=0
ERROR
AT+CSMS=1
ERROR
AT+CSMS=?
ERROR
AT+CSMS?
ERROR

(by the way, I looked in the Multi-Tech CDMA-C1 AT Commands Reference Guide, and the command CSMS does not exist)
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 3404
Registered: 08-2008
Posted on Monday, August 08, 2011 - 04:54 pm:   

That's the problem.

Multitech must be changing chipsets with some regularity, because this command has always been supported in the past.

Indeed, it looks like their CDMA modems are now using a Sierra Wireless chipset.

We'll have to investigate this further. According to that documentation, most of the commands we use to test to see if the modem truly is a GSM modem fail.

Maybe there is not good enough reason for us to require these init commands to succeed. For some GSM modems, the init commands are important to ensure that the modem is in the correct mode ... but for a modem that is an emulator, maybe we should not be so strict.

I have to refer this back to engineering. It will take me several days to respond further.

--
Des
NowSMS Support
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 3411
Registered: 08-2008
Posted on Wednesday, August 10, 2011 - 08:33 pm:   

Hi Raffi,

We made some changes to the modem initialisation logic which will hopefully be sufficient to allow this modem to work.

Please try the updated version at http://www.nowsms.com/download/nowsms20110810.zip.

--
Des
NowSMS Support
Raffi Krikorian
New member
Username: Rkrikorian

Post Number: 15
Registered: 06-2008
Posted on Thursday, August 11, 2011 - 05:21 am:   

Hi Des. Thanks for the patch. Unfortunately, our license has expired. I tried installing it as a trial version, but it doesn't work. It ends up on a screen which gives me the options to "Install with a purchased serial number" or "Exit"
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 3412
Registered: 08-2008
Posted on Thursday, August 11, 2011 - 10:59 am:   

Hi Raffi,

Send me an email with your license details (best if you have the text file we normally send out), and I will sort it. Send it to nowsms@nowsms.com with Attention: Des in the subject line.

--
Des
NowSMS Support

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