gsm

I want to send / receive sms using AT commands from my computer to my mobile phone. I connected my phone to my computer using a USB port. My computer detects the modem and I am able to send sms from the computer to mobile phone. However, I am not able to receive sms in my computer.. I am presenting a sample of what I get from AT editor AT+CMGF=1 OK AT+CNMI=1,2,0,0,0 Error What can I do to send this prob and why am I getting this Error? Every phone has different capabilities so you should check which values for each parameter are valid for your phone by sending it a AT+CNMI=? For example my

The GSM modem I have is set to 115200 baud-rate by default. I have PIC18 Microcontroller connected to it with 19200 baud-rate. I changed the modem baud-rate to 19200 then saved the settings but every time I reset the modem, the baud-rate changes back to 115200. These are the following commands I used. Change baudrate AT+IPR=19200 Then I reopened the hyper-terminal (Putty) with 19200 baud-rate to save the current settings. Save settings AT&W But upon reset of the modem, the baud-rate changes back to 115200. I am using M6000 GSM/GPS Module(Tk115 Gps Tracker) but there isn't a lot of support for

In my application I need to check network type GSM or CDMA (for Verizon). I found CTCarrier class which contains property mobileNetworkCode, but I don't wanna hardcode value for each providers. Are there other ways to check it? Please help. You could get that through the Model#, but then again, you have to hardcode a list of Model# and compare them. Maybe you could do that by checking the IP Address of the iPhone if it is wireless connected. If once detected it would´t change unless you change the SIM ;-) At http://www.tcpiputils.com/browse/ip-address/192.76.85.245 you get information on

I want to send messages from php by using a GSM modem. I have configured the modem and tested it using Hyperterminal. Now I want to execute AT commands using php. Is there any open source library available for that, or some other solution? Since my php application is hosted on an Apache webserver, I used python, pyserial and mod_wsgi to send the SMS, thanks for all the help. I haven't used this myself but someone i know used it a while ago. http://code.google.com/p/php-serial/ 来源： https://stackoverflow.com/questions/5938471/at-commands-php

I want to send SMSs in PDU mode. I have checked the spec for my modem, and it supports PDU mode. I have developed a PDU encoder and decoder, but now I do not know how to send data to my modem. I tried these AT commands: AT AT+CMGF=0 after sending these commands I sent the PDU data like this: AT+CMGW="16079189390500410011000C918939050000000000AA02E834" I have checked the correctness of this PDU using this online tool : http://www.twit88.com/home/utility/sms-pdu-encode-decode but after sending it via the AT command, the modem hangs. Is this the right way to send SMS PDUs? I searched on Google

I am having a CRM (Customer Relationship Management Software) built on php and running it on localhost (windows XP system). This contains the list of my clients. I want to be able to call these clients directly from my CRM and keep a log of the same. (Call time, call duration and record the calls). For incoming calls, I should be able to link it to my CRM, display the client details and log the data. I have a voice enabled 3G GSM Modem (with USB connector) which can be used for this purpose. From my search, I understand I would need to send AT commands from PHP to interact with the modem. But