Hello, I'm playing around with reading the signal strengths in a small Android App, and was wondering if anyone has tested this (or just knows) of the documented values (0-31, 99) which value is better. By asking which is better, I mean, does 0 represent no signal, or perfect signal. I'm running an HTC Incredible on Verizon, so I can...
Lets say I have 2 mobile phones which are 50 meters away from each other and I would like to send a very small packet of data from mobile-A to mobile-B, without using any communication to cellular tower. To make it simpler, I would like to build an app which implements a Peer to Peer connection for 2 mobiles in the same radius (in the s...
A lot of what I have recently read about SMS uses a specification of 140 octet characters, where most uses of SMS I am aware of use 160 septet characters. A UDH is 5 octets long, meaning if I want to send concatenated SMS I would only have 135 octet characters for my message data. This would allow me 154 septet characters after the UDH...
I'm writing a code for handling SMS PDUs based on all those ETSI GSM documentations. There is one thing I need to ask about. PDU contains a User Data Length field followed by User Data. According to GSM 03.40, the UDL field is the number of septets of user data when the uncompressed GSM default alphabet is used. However, it also says, th...
I would like to retrieve the phone book data from SIM using GSMComm lib in C#. (SIM Card is inserted into a USB Modem) However, I do not know how to use the these methods to retrieve the data: -FindPhoneEntries() -ReadPhoneEntries() -DeletePhoneEntries() I could not find the according syntax to call these Phonebook method. Could you c...
Howdy overflowers! I'm a bit stuck investigating the how-to's of sending operator commands (dont know the correct technical term) using my GSM modem, in order to get an "alert" type message response from my network operator. Response characteristics are of course operator+command specific, but I figure they're used in similar ways regard...
Hello! Is it possible to read an audio stream during (GSM) phone call? I would like to write an encoding application, and I do not want to go with SIP&VoIP. Thank you. ...
I am supposed to develop a USSD gateway for an operator so please help me with the following -can I use asterisk for this purpose? -can the asterisk system take alphanumeric characters as user input. ...
Hi guys, I wan to hide/show my caller id from my activity programmatically. I tried to find it in the android documentation but without the luck. Maybe you have any ideas? Thanks, marqs ...
I need to make HTTP request on Android using GSM connection, not Wifi. My current solution is to disconnect from all wi-fi connections and perform a request. Is there any better solution? I could not find any relevant methods in the API (I looked in package org.apache.http, but it seems it is completely unaware of what type of connectio...
I want to develop an interface in my computer that will send sms from a text box to the computer attached phone(which has gsm based SIM) and phone will deliver that sms to a particular number(the number will also be given in text field). I want to know what are the tools i may use for this purpose.What programming languages will be bette...
Hi , I want to develop an application to make and receive call from computer through GSM Model. Is it possible? Any open source project available which I can refer for it? or Any reference to code is also welcome. I am comfortable in MFC/Qt. This application will get used and developed in India for windows computers. Thanks for help. ...
I want to make a windows application in which I want to send ,receive and process SMS using GSM Modem( this one ), It would be very helpful If you provide me link to any opensource library or application which do the same. I am good in MFC and Qt, so any C++ or C library or app reference would be much better. It would be great help, If...
I wonder how mobile phone companies generate both PIN and PUK for their SIM cards? I have a large database of already generated codes, this database contains 3 columns: * MSIN : Mobile Subscriber Identification Number (10 digits) * PIN : Personal Identification Number (4 digits) * PUK : Personal Unblocking Code (8 digits) So far, may...
Hello everyone, we've got some legacy hardware which connects to cell phones over Bluetooth using the DUN profile. It then issues AT commands to read SMS for monitoring purposes. Android phones do not support AT over DUN. That's why I'm writing this application. The problem is: while the legacy hardware will connect to the phone, it wi...