my question is how to make sure that SMS you are receiving is saved in SIM rather than device?
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I want to build a service of sms receiving online, so i got a sms gateway, gsm pool with 16 slots for sim cards.
I need it to be able to receive sms messages in multiple sim cards, for differente OTP services(Telegram, VK, FB), so every sim card should only receive one otp message at all, so i need various to make it work
Is there a way i can achieve it? Is there any software i can use?
There are several such websites that are using for receiving online OTP verification.
Here is the website I found helpful for me when sending and receiving SMS from different countries around the world https://anonymsms.com
Is it possible to simulate sending SMS to a real device without SIM Card with appium?
Is there any way to still deliver sms message to Android/iPhone device in ordinary messages app, when device is outside of coverage area of cellular provider but has access, for example to WiFi internet?
Thank you
Regular SMS message can be sent/delivered only when phone is in radio coverage. However, some applications can show message as SMS following its own protocol over the internet.
Such example is iMessage (Iphones).
I believe this can be done. But it is not an easy.
You need to create an app and install it on the phone. This app should inject SMS into the ordinary message app (I am not completely sure this is possible on iPhone). The app should, using WiFi, get the information about the SMS from somewhere. Different companies like https://twilio.com or https://suresms.com have inbound SMS numbers. So, you send SMS to this "virtual" number, then an app will pickup the message and inject it into the phones ordinary app.
I cannot come up with a solution where the message is delivered to the SIM cards phone number when the sim-card is out of reach.
I am currently working on a project for which it is required to receive SMS messages using a dongle. The dongle being used is a Huawei E3131 Hi-Link dongle, which is configured in serial mode via USB-modeswitch. Communication to the dongle is done via AT-commands.
The problem is that SMS messages are not being received. After alot of attempts to fix this I found that SMS messages are ony received after sending out an SMS on the dongle itself. I've also tested with another dongle (Huawei E173), but this works fine.
For testing purposes I am not using any code yet. I am manually execute the following AT-commands to initialize the dongle:
Pin is ready according to "AT+CPIN?".
Dongle is set to text mode via "AT+CMGF=1".
SIM storage is used via "AT+CPMS="SM","SM","SM"".
Message indicators (AT+CNMI) is set to "1,2", but "0,0,0,0,0" and other combinations have been tried as well.
After executing these commands I check the received SMS messages via "AT+CMGL" and none show up (as expected).
Then I will send an SMS to the dongle. After waiting for a while still no messages show up (though you'd expect them to). Then I will use the dongle to send an SMS to another device via the AT+"CMGS" command. This SMS is correctly received on the other device. After sending this SMS suddenly the SMS sent to the dongle show up via "AT+CMGL".
I've read through the Huawei AT commands manual but have still no clue what's going on. I've excluded the following possible issues:
According to "CFUN?" the dongle is in "Online" mode, like you'd expect.
The SIM is not full as "AT+CPMS?" shows.
Enabling mobile equipment errors does not produce any extra output ("AT+CMEE=2").
CREG shows that we are registered (on a roaming network).
CSQ shows a signal is available (strength of 16,99).
I've tested with another E3131 dongle, but this produces the same problems.
RSSI messages are still being received.
Sometimes switching on the internet on the dongle produces the same result as sending out an SMS.
In the SMS gateway which can be used for sending SMS, the SMS will stay in the "pending" state until the message is delivered in the storage on the dongle.
Does anyone know what's going on?
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.