modem

Is there a way in managed code to list the Modem/Telephony devices installed on the system? If .Net does not have a way, could you point me in a direction? WMI will contain all the information you need in the Win32_POTSModem class. In C# or .Net, you can utilize the System.Management namespace to query WMI. Within .Net, you can use MgmtclassGen.EXE from the platform SDK to generate a class object representing the WMI class. The command line would be like this: C:\Program Files\Microsoft SDKs\Windows\v6.0A\Bin\mgmtclassgen.exe Win32_POTSModem /L CS /P c:\POTSModem\Win32_POTSModem.cs and then

Is there a telephone application for modems that can receive a phone number as a parameter and manage the call for themselves? I ask because in my application I must implement a click2call functionality and may be is a free software out there that I can use and I do not have to fight with TAPI. Thanks! Here are a few wrappers available to abstract away the complicated parts of using TAPI. TAPI Wrapper http://www.vbrad.com/article.aspx?id=61 Normally, the domain of C/C++ programmers, this wrapper code will allow you to skip all the complexity and get to work straight away. ATAPI - Managed TAPI

I'm currently writing a small tool for a linux router that sets up a wwan (gsm/3g) connection when I plug an appropriate modem into its USB port. When the device is plugged in several ttys are registered and I currently maintain a list of manufacturers and devices and which of their registered ttys is the control / data port. If possible I want to get rid of this list and find a way to somehow probe the registered ttys directly to check if they are a control port or a data port. I examined the sourcecode of wvdial and modem-manager to see how these tools detect the right port but was unable to

I read that a GSM modem can only receive up to 30 SMS per minute. What would you do if you need to receive more than that? Is there another technology? 3G Telecoms I think you might want something different to those answers listed at What are the best practices for building an SMS server If you just have one service that is running where you want to receive many SMS then it would be most cost effective (and simplest) to avoid integrating with a mobile network operator and instead use a SMS aggregator. These often call themselves SMS gateways, but they are independent companies and not a mobile

I'm running Ubuntu 11.04 and a ZTE 3G modem. The modem is dialed with WvDial When the modem is not in use by WvDial I can send AT commands to the modem, and get information like signal strength: AT+ZCSQ +ZCSQ: 1, -87 OK But when WvDial is using the modem, /dev/ttyUSB0 is locked and I can't query it. Am I missing something obvious? Is there any way I can configure the modem, WvDial , or pyserial so I can send AT commands to the modem while it's connected? Ah. Apparently this modem exposes a couple of ttys to work with. I was able to use /dev/ttyUSB1 to sent AT commands while WvDial was

I have tired to search how to send USSD command on Google. I want to check may balance from operator. All of the samples I have seen use commands like this: "AT+CUSD=1,\"*140*1#\"\r\n"; It seems to be correct. I am using something like this that I think works. I have a D-Link GSM modem, and when I send this command using it, it makes some noise on my speaker, which I believe tells me something happened. my modem have it's own windows application when i disconnected modem by my own application,i check it by modem's application and in USSD tab i can found the result of my commands that i sent by