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Questions tagged [telecommunication]

Telecommunication domain relates to wireless standards like GSM, GPRS, UMTS, LTE, WiMAX, IEEE 802.11. Programming questions related to 1G,2G,3G,4G,5G Cellular Communication can be asked here.

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342 questions
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SMS Gateway SMSC/ESME TON/NPI

I'm developing an SMS Gateway and I was thinking about the features that I should implement in it. So I reviewed some SMS gateways (SMSNOW, SMS studio, and Ozeki) for examples. I almost finished the implementation but I came across a feature in…
Stacker
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Is it possible to receive a signal over 315 MHz on an Android device?

I want to make an android application that will receive basic data transmitted from a RF Link Transmitter (https://www.sparkfun.com/products/10535?). I want to know first off if it is possible to somehow control what frequency you can receive a…
Mark Y.
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Difference between MAP (Mobile Application Part) and SMPP (Short Message Peer-to-Peer) Protocols

I have a basic idea about these protocols, but when it comes to put them in an integrated system, I fail to understand their position. For eg. could somebody please explain when is SMPP used and when is MAP used? Do they belong to a different…
user1693810
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How to mark-up telephone numbers on Intranet for Mitel Unified Communicator Advanced

I am using Mitel Unified Communicator Advanced 2.0 with the Mitel.DialBHO plugin for Internet Explorer. The plugin tries to detect numbers in web pages that are formatted like phone numbers and then overlays a click-to-dial hyperlink. My question…
Iain Fraser
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How to use Android to receive on certain radio frequency

Is it possible to write an Android Application to be used on an Android OS Mobile Phone that can RECEIVE (not worried about transmitting) on a frequency between 120-130 MHz range? I've seen an option with an Arduino Board, and also saw something…
Mark Y.
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Wireshark tcap dissector inside my program

I'm working on SS7 project and reached a point where I need to create my tcap dissector/parser, So I was wondering to using wireshark dev files inside my source. Is that possible? if yes? how can I do it? is there any tutorial available?
Jack Jordan
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Mobicents - SimpleServlet Application Router not routing invite to

I am trying to follow the tutorial at, http://ben-touron.blogspot.com/2009/11/developping-simple-sip-application-with.html to create a Simple Servlet using Mobicents. I have configured my dar file and also set up the dar file in the server.xml in…
blacks0ul
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What is an IP Multimedia Subsystem?

I have read that IMS defines a complete architecture and framework that enables the integration of voice, video, data and mobile network technology over an IP-based infrastructure. Does the framework provided by the SIP network elements like…
pravi
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Does WebRTC enable peer to peer connectivity given no internet connection?

Given a state in which the cell towers are down and out of function, there is no internet connection, would WebRTC be able to form peer to peer connections? Such that in case connection is lost to a server due to loss of internet connection, there…
GabrielJSW
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Transmitting String Array over a telephone line

I have a java String array which contains around 2 billion+ entries. Now is there away i can transmit this array over a telephone connection like GPRS or any other means (without using the internet). This might be a dumb question, but i need help
Illep
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reference for wireless routing and mac layer

I wanted to find a good book that explains principles (possibly with some theory) of MAC and routing layers in wireless networks (cellular and wifi). I do not need the bible (classical 800 pages or so books) but, rather, something that focuses on…
Bob
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Entropy in binary files - what's the purpose?

I've read the Shannon's theory to entropy and how to implement such an algorithm for a binary file (pretty easy) But I can't figure out what's the purpose on calculating the entropy of a .exe or any binary file I can understand calculating the…
Marco A.
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SMPP: submit_sm and deliver_sm

What is the difference between submit_sm and deliver_sm operations in the SMPP protocol? When to use each one?
Ali Dandach
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Simulate 16-QAM on MATLAB

I want to write a program which simulates the modulation and demodulation of 16-QAM. First, this program creates an array of 1000000 randomly generated bits, it groups them as 4-bit values and converts into numerical values. Then it enters 16-QAM…
user6210457
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When a call arrives, the onCallAdded(Call call) method of InCallService is not called while main thread is still running

What solution I am looking for How to make onCallAdded(Call call) method of InCallService called every time when I make call in the main thread ( using #repeat for cycling). Background I'm writing a small Android auto test APP to automatically make…
lori041987
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