Is it possible to send "Silent SMS" (also called Stealth SMS / Ping SMS) with using gsm modem?
Modem supports a set of Hayes commands (or "at commands").
I tried to find the AT-command that send this type of SMS messages, but, unfortunately, I found only getting regular SMS.
Sure. Instead of sending a plain text SMS, you are going to have to send in PDU mode (assuming your modem supports PDU mode. Most do.) and build the PDU yourself with a message type 0.
Here is a link to PDU format: GSM 03.40
Here's a link to a previous discussion about PDU mode on modems: How to send SMS by GSM modem in PDU mode?
Related
i'm new to asterisk,i wanted to send an SMS using the command
Action: smscommand command: gsm send sms $port+1 $destination "$message" $id
and i did it, the message reach to destination successfully.
What i'm trying now to achieve : is to add a SENDER ID , but by looking into the docs i didn't found any way to do that using the command gsm send sms
any help please !!
thanks in advance
here is what i'm talking about
You can't send text id or short number if you are using usual sim card and gsm gate. Your gsm provider network will not accept any id, it will be selected based on your sim info.
If you need that, you need digital connection via SMSC or third-party sms gate connected via SMSC.
I working on a website which have function for sending SMS messages. What i know is the GSM modem use AT COMMAND to send/receive the message. I already have the modem but i can't find a way to sending the AT COMMAND from php script to the modem. Can someone give me a clear direction.
Many thanks.
I would like to be able to output information from a quad band GSM modem. The modem would be connected to a computer, and the idea is that I could send AT commands or SMS from very large distances to the modem. The modem would receive the instructions and would reply in SMS to the sender with the proper information. I am a little overwhelmed in how to approach this however, does anyone have any experience or insight with this? In particular, I am pretty lost on how I would process the received instructions and have the computer execute them.
An example of what I'm trying to do:
Send SMS reading "Power info" to modem
Modem receives SMS, relays it to the computer
Computer sees instruction, fetches necessary data
Computer outputs data to the modem
Modem sends SMS to sender with the proper data (in this case volts/amps being used or something)
Please let me know if anything is unclear, it is my first time posting here.
I want to know how to send and receive SMS via PC modem over PSTN? Is there any application to do this for me or what's the protocol of this process?
If you are just trying to send SMS via your PC try Google Voice. It is free and it lets you send and receive SMS from a web browser.
You need an operator who supports fixed line SMS and you need a modem that can send the SMS such as:
http://www.ntstelecom.co.uk/SMSmodem.htm
An application which can send SMS's using a GSM modem and AT commands will probably be able to use the above, in place of the GSM modem, to send the SMS over the PSTN.
I may set up an SMS gateway using Kannel and a Huawei E220 GSM modem.
Now, my question is, is it possible for Kannel to detect extensions appended to the server's phone number in incoming messages (e.g. someone texts 12345#28 instead of 12345) and/or to send outgoing messages with such extensions appended?
Kannel supports deliver to recipient addresses with a '#' in them, but not by default.
By default Kannel's smsbox (HTTP I/F) has "0123456789 +-" as valid recipient characters. These can be extended to support '#' but setting
group = smsbox
...
sendsms-chars="0123456789 +-#"
That's all well and good but the key is does the underlying messaging layer you use for delivery support it also. For example when testing with a modem (kannel 'at' driver) - the modem returned an ERROR on the send command so it may also perform some addressing validation. Also when testing with kannel 'SMPP' connection to a provider the submit_sm request also returned an error. So Yes Kannel supports delivery to/from recipient/destination addresses formatted in that way - but that may be a moot point.
HTHs
Cheers,
Alan