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NowSMS Support Forums ⬆ NowSMS Support - SMS Issues ⬆ Archive through October 16, 2008 ⬆ |
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Author | Message | |||
Paul Danter New member Username: Pauldanter Post Number: 1 Registered: 08-2008 |
Hi, I'm having problems sending SMS using this Aircard. The log says: ERROR - Modem Response (1): OK I've tried setting up the modem using the modem name (in the SMSC config) as well as the COM port it is assigned to. I can term into the modem without any problems. I also tried with the drivers that come with the AT&T modem, plus downloaded the generic Sierra Wireless software. I tried sending SMS messages with the native Sierra Wireless app running and without. All these approaches give me the same error message. Does anyone have any ideas? Thanks, -Paul | |||
Des - NowSMS Support Board Administrator Username: Desosms Post Number: 66 Registered: 08-2008 |
Hi Paul, It sounds like the modem might not have support for the AT command standard for sending/receiving SMS (ETSI GSM 07.05, 3GPP TS 27.005). What's happening is that NowSMS is sending the AT+CMGS command, which is a multi-step command. The modem is supposed to respond with a ">" character, indicating that it is ready fo rthe next step of the command. Instead, it is responding "OK" ... which seems to suggest that the modem does not really understand this command. We see this situation most frequently with Blackberry devices, which don't support these AT commands, but simply return "OK" to a variety of different commands that they don't really understand. Is it possible for you to connect to the modem using HyperTerminal? I'd like to see the results of the following commands (press Enter after each command): ATE1V1 AT+CSMS=0 AT+CSMS? AT+CSMS=? AT+CMGF=1 (Above puts the modem into text mode for SMS for the next test ... NowSMS usually uses binary PDU mode) AT+CMGS="SomePhoneNumberHere" Modem should respond with ">" ... after getting the ">" prompt, put in some text and then press CTRL-Z -- Des NowSMS Support | |||
masaharu kiyomiya New member Username: Kiyo Post Number: 1 Registered: 08-2008 |
Hello, NowSMS Support I've got the same problem, then try to do the solution you indicate.i have no idea how to use HyperTerminal, can you tell me how to use it? | |||
Des - NowSMS Support Board Administrator Username: Desosms Post Number: 78 Registered: 08-2008 |
Hi, HyperTerminal is a program included in Windows XP (but unfortunately not in Windows Vista). I believe it is also in Windows 2003 Server, but that you need to add/remove Windows components to install it, as it is not installed by default. HyperTerminal is useful for troubleshooting modem issues, and situations like this where it is necessary to determine whether or not a modem actually supports particular functionality. In Windows XP, you'll find HyperTerminal under Programs/Accessories/Communication in the Start menu. When you start HyperTerminal, it has a user interface quirk that it wants you to assign a name to your session. Enter anything, it doesn't matter. Select your modem, but leave the phone number to dial blank. Press OK. HyperTerminal will tell you the phone number is invalid, press Cancel, and you will be connected to the modem and able to issue AT commands. The modem might not echo back what you type initially. But if you type ATE1V1 and press Enter, the modem should respond with OK ... and after this it will now echo back anything that you type. I'm curious to see how the modem responds to the commands mentioned above. Unfortunately, there's no good alternative for HyperTerminal under Windows Vista. When in a bind, I've used the trial version of Absolute Telnet, which you can find at http://www.celestialsoftware.net/telnet/. When using Absolute Telnet, you need to go into "Options/Properties/Connection", and configure the COM port under "Direct to COM". Then use "File/Connect" to connect to the modem so that you can send commands to it. -- Des NowSMS Support | |||
Des - NowSMS Support Board Administrator Username: Desosms Post Number: 117 Registered: 08-2008 |
(Another lost post from last week's web serve crash. This was originally posted by G Romeo: ) On a Sierra MP 875 i have : ======================= AT OK AT+CPMS? +CPMS: "SM",3,40,"SM",3,40,"SM",3,40 OK AT+CPMS="ME","SM" +CPMS: 0,255,3,40,3,40 OK AT+CMGF=1 OK AT+CSCA? +CSCA: "+3093599000",145 OK AT+CMGF=1 OK AT+CMGW="+306937156235",145 > ERROR And after this very first ERROR on every +cm, +cs command return error AT+CMGF? > ERROR AT+CSCA? > ERROR AT+CSCA? > ERROR AT+CPMS? > ERROR | |||
Des - NowSMS Support Board Administrator Username: Desosms Post Number: 118 Registered: 08-2008 |
My suggestions were to try AT+CMGS instead of AT+CMGW ... but that is still an interesting log. Press CTRL-Z to get out of the ">" mode. Try editing SMSGW.INI, and under the [Modem - driver name] section for your modem, try adding ModemTextMode=Yes. Let's see if that works properly. (The modem might have a problem with PDU mode that is required for sending binary messages.) -- Des NowSMS Support | |||
G Romeo New member Username: Corfiot Post Number: 2 Registered: 09-2008 |
I have this response from SIERRA: >None of our 3G MP modems support SMS. >Thank You >Sierra Wireless Tech Support >877-231-1144}} | |||
Des - NowSMS Support Board Administrator Username: Desosms Post Number: 123 Registered: 08-2008 |
Thanks for that update. It is strange that they appear to have some support for some of the commands. It might still be worth trying the ModemTextMode=Yes setting. But, then again, if the manufacturer says it is not supported, there's probably good reason for them to say so. -- Des NowSMS Support | |||
Bryce Norwood - NowSMS Support Board Administrator Username: Bryce Post Number: 7669 Registered: 10-2002 |
Hi, If anyone is still following this thread, you might want to take a look at the updated information in http://support.nowsms.com/discus/messages/1/24431.html. Apparently, contrary to the information that G Romeo got back from Sierra Wireless Tech Support, this modem does have SMS support. The issue is that the modem installs with multiple COM ports. The COM port associated with the modem driver "Sierra Wireless AirCard 881U HSDPA Modem" does not properly implement SMS support. However, there is another COM port that gets defined by the modem driver which does include SMS support. We are trying to get more information to determine how you identify the other COM port that gets defined by the modem driver. If no additional follow-up information is posted in this thread, please visit http://support.nowsms.com/discus/messages/1/24431.html where there is continuing active discussion regarding the Sierra Wireless 881 USB modem. -bn |