It is of a maximum of 15 digits long. Uniquely identifies a mobile subscriber across the globe. Number length varies according to the country. It is the number which is dialed by a mobile subscriber to call another subscriber. A mobile subscriber can get the mobile number from the device.
Generally, this remains the same, but the mobile operator can change it. The additional information helps to decide the routing and other things. For example, if a number is of type international, the first few digits are the country code, and the call will be routed outside the country if its for another country. CC or mobile country code :1 to 3 digits long. Signifies the country. The number belongs. When mobile a subscriber dial a mobile phone number with the national format, the country code in MSISDN is not present.
There may be a zero in place of country code. The mobile operator chooses these. Both can we used to route messages towards the home network of the subscriber. But there are differences. When a new sim card is purchased. The box has a printed mobile number. It takes some time to memorize the phone number. But meanwhile may require to know what is my phone number from the device itself. These days android devices are ubiquitous. The device shows the phone number in various settings. The exact steps may differ for different models of android or os versions.
Is it true and how then it works? Your email address will not be published. Skip to content Home Telecom msisdn. Leave a Comment Cancel Reply Your email address will not be published.Is your feature request related to a problem? Please describe. There is no clear process to outline how and where to get the values for all environment variables.
Describe the solution you'd like A short brief could help connect the dots on where and to setup those environment variables, For-example the SSL variables is there a procedure to guide how the setup should be like.
Add a description, image, and links to the ussd topic page so that developers can more easily learn about it. Curate this topic. To associate your repository with the ussd topic, visit your repo's landing page and select "manage topics.
I've looked over the internet for a long time but failed to find the information about setting up an environment for developing and testing USSD services on my PC. How can i start developing this? I worked on a project out in the middle east some time ago where we had this exact requirement, and we actually had to enlist the help of the local telco company to support our efforts.
More so, only a fraction of this signalling channel is used and it's often out of band serial data. Given that info, at a very minimum you'd need a local GSM connection that was addressable using a standard msisdn thats the real name for a phone numberthat connection would then have to provide a standard C7 signalling environment that could be reacted to and the serial data decoded, before being pushed into an SMPP based server or similar at the connection end.
Once you had the decoded message in the server, and you'd analyzed the various flags in the PDU for the message to know that it's a USSD message, you'd then need to remove the message from the queue, process it, figure out what the command meant, then send it to an application server that would then decide what URL to call, or what soap endpoint to pass it to and many other factors, as well as taking any response, converting it back to SMPP then re-serializing it and sending it back down the signalling channel to the original device.
Now, with the correct know how and equipment, it's certainly possible to set your own up. Many mobile phone providers these days will provide their customers with pico cells in poor coverage areas, it's also possible to buy stub antennas that can be hooked to a local PC but you need to be absolutely sure that your allowed to do that in your area.
Many authorities strictly control what radio emissions are and are not allowed in any given area, and heavy fines or imprisonment will be the outcome to those who break those laws. Once you have an antenna, then you can run something like 'Open BTS' on the machine the antenna is connected too. It does not however provide SMS software, for that you would need another machine with a standard Linux distro on it, then software such as Kannel setting up and running on it, once you have kannel, then you have the ability to process messages.
All need is a service provider API from a Telcom provider such as MTN, Orange etc and secondly, you will have to just create endpoints to which callbacks may be made to. Remember that Ussd is a session-based application and the way it works is sort of one way.
This means that you will have to structure you business logic to fit your user needs and make them feel they are using it like a web app or mobile app. Learn more. Asked 7 years, 8 months ago.We have heard about USSD. It is a basic service supported on all gsm phones and gsm mobile networks. USSD is the only way to transfer data from a mobile user to the network in real-time, with no internet. Many service providers provide application accessibility from the internet and USSD both.
Like many other applications, it serves a purpose. You might have heard about voting. Voting can be done by SMS just sending your option to a shortcode or via USSD dialing a code or string and select an option from a menu displayed. The main thing in a USSD application is a menu. A menu depends on the application logic.
In this case, a menu will have a list of candidates and you will choose one or maybe none. Once chosen, the next menu is just the display of status successful. Facebook also an application that can be accessed via USSD. So next what we need to do to develop a USSD application? The first thing is communication with the device. This is only possible via mobile operator or aggregators, who connects to mobile operators and give connectivity to others.
Once you find any one of the options, next comes a string, which a mobile user will dial and will access the service. This string should be published on mobile networks for routing of the USSD message towards your application. You can directly use the ss7 stack and build the application logic in application over the ss7 stack. Your email address will not be published.
Leave a Comment Cancel Reply Your email address will not be published.The present invention relates to a method for providing direct or indirect communication in a telecommunications system between a first network element and a second network element, the first network element forming part of or being connected to an originating telecommunications network, and the second network element forming part of or being connected to a recipient telecommunications network, in which the originating and recipient telecommunications network are interconnected networks.
In a further aspect, the present invention relates to a telecommunications system, comprising at least an originating and a recipient telecommunications network, the originating telecommunications network comprising a first network element, the recipient telecommunications network comprising a second network element.
State of the art Such a method and system are known, e. Communications GSM telecommunications networks, in which an application is being executed on a server to provide a service to a subscriber. The transfer can be initiated either by the application or by the MS. The application can be resident either in the first telecommunications network or in an internet protocol IP network, which is in communication with the first telecommunications network using an appropriate interface, such as a gateway.
In the present invention, the term 'subscribed to' is to be understood to the fact that a network element, such as a mobile subscriber device or mobile station, has a record in a register of the second telecommunications network, such as the home location register HLR in a GSM network. The record comprises data, which is necessary to make a connection with the network element. A mobile station MS is automatically registered at the nearest mobile services switching center MSC, the servicing MSC, which is located either in the home network or in a further visited network.
As part of the registration process the HLR holding the subscription record for the concerned mobile station MS, sends a copy of the relevant subscriber data, e. Some messaging protocols, such as the USSD protocol mentioned above, have a disadvantage that they can only be used in a single telecommunications network.
When a network element, such as a mobile subscriber device is subscribed to a telecommunications network different from the telecommunication network with which a further network element, such as an application, is in communication the originating or servicing telecommunications networkit is not possible to initiate and establish USSD message exchange from the application to that mobile subscriber device or vice versa.
In present GSM networks this is caused by the fact that the mobile subscriber device, to which the application can send the USSD message, is not registered in the home location register HLR of the servicing telecommumcations network. The application can not send an USSD message to a mobile subscriber device subscribed to another mobile telecommunications network as the HLR of the serving telecommunications network has no routing information record for mobile subscriber devices subscribing to other telecommunications networks.
For the same reason this is not possible even when a mobile subscriber device is roaming logged on into the servicing telecommunications network.
The term 'logged on' or 'registered' is understood to mean that the information how to connect to mobile subscriber device is known in the associated telecommunications network. This may be the mobile subscriber device's home network or a visited network roaming. The GSM technical standard Service codes in the range are referred to as visited public land mobile network VPLMN service codes and are intended for invoking applications located in the network where the mobile station is currently logged on registered regardless whether this is the home network HPLMN of the mobile station MS or it is just a visited network.
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Service codes in the range are referred to as home public land mobile network HPLMN service codes and are intended for invoking applications located in the home network of the MS, where the MS is subscribed to.
This addressing scheme is limiting access for the USSD messages initiated by the mobile station to only applications located into or connected to either the home network or the visited network. It is currently not possible for the mobile station to initiate and submit USSD messages to an application connected to a third network wherewith the mobile station MS has no relation.
The present invention seeks to provide a method and a telecommunications network for conveying messages between a mobile subscriber device, particularly USSD messages, and an application resident in e.
The application servicing mobile telecommunications network is the GSM network where the application resides or to which the application is connected. According to the present invention, a method is provided of the type as defined in the preamble of claim 1, in which the method comprises the steps of obtaining routing data of the second network element in the recipient telecommunications network using a first protocol, forwarding messages from the first network element to the second network element using a second protocol and the routing data, in which the second protocol is different from the first protocol.
In a first aspect of the present invention, the first network element is a server executing an application and the second network element is a mobile subscriber device subscribed to the recipient telecommunications network, and the communication is initiated by the application.
This allows to use the routing data obtained using the first protocol, e. USSD messages, originating from the application to a mobile subscriber device subscribed to and in communication with a different telecommunications network. The messaging services of the mobile telecommunications system are therefore extended to providing USSD messaging channels for applications connected to the serving originating telecommunications network to users subscribing to other recipient telecommunications networks.
In a second aspect, the present invention also seeks to provide a solution to the problems arising when a mobile subscriber initiates a communication with an application on a different teleconrmunications network.
According to this aspect, the first network element is a mobile subscriber device subscribed to the originating telecommumcations network and the second network element is' a server executing an application, connected into the recipient telecommunications network, and the communication is initiated by the mobile subscriber device. The recipient telecommunications network is in this aspect neither the home network nor the visited network when the mobile station is roaming of the mobile station.
Hubtel USSD API - Source Code
USSD message, originating from the mobile station located in an originating network to an application located in or connected to a recipient network which is different than the home network or the network that may be visited by the mobile station MS. These cross-network USSD messaging channels created by this invention enables mobile users to access applications, and hence the services provided by those applications, regardless the mobile telecommunications networks where the applications are located or connected to.
This can lead to economies of scale in the wireless services space. The expanded messaging service can be made available by the application serving telecommunications network to commercial providers. In a further embodiment, the present method uses the SS 7 signalling protocols, which is are standardised protocols widely used in GSM networks and can therefore easily be integrated into existing mobile telecommunications systems.LTE comes under the fourth generation of mobile communication.nqfhall.space + Express - Tutorial - Express-Validator and Express-Session (Validation & Sessions)
Provides much higher speed than its previous generation which is 3G. LTE is the data only network. On LTE all services will be on data network. This will be after full implementation of IMS. IMS is for deploying multimedia services over IP network. If the network does not support IMS, the roaming network does the fall back to 3G.
Which attaches the phone. Then roaming network sends the USSD to the hone network. In this ussd tutorial we will cover ussd session details over LTE network. The protocols and call flows will be changed. The protocol for ussd will be SIP or session initiation protocol. The ussd in lte, uses sip protocol stack. UDP usesinternet protocol. Application over ussd, uses the services of SIP layer.
For sending USSD to the home network. SIP layer maintains a ussd session. With IMSI phone will have standard application for ussd. LTE is the 4G network. The protocols and the network nodes has been changed in LTE as compared to the previous generation which is 3G. A kind of VLR in 3G network. When mobile a user dials the USSD code. SIP message have ussd code a string. Application replies with the menu. USSD menu is the string.USSD uses codes made up of the characters that are available on a mobile phone.
A USSD message, which can be up to characters long, establishes a real-time communication session between the phone and another device -- typically, a network or server. USSD can be used for Wireless Application Protocol WAP browsing, mobile money services, prepaid callback service, menu-based information services and location-based content services.
With USSD, users interact directly from their mobile phones by making selections from various menus. This means USSD enables two-way communication of information, as long as the communication line stays open. As such, queries and answers are nearly instantaneous.
Typically, USSD involves a query from a mobile phone user, such as a request for a bank account balance.
The process is then repeated in reverse, i. Generally, the responses, which contain a maximum of alphanumeric characters, are sent in a format that's easy to display. The user sends and receives data by dialing a specific short code -- usually, five numbers. USSD applications run on the network, not on a user's device. As such, they don't have to be installed on the user's phone, which is an advantage for users with feature phones that have limited storage space.
USSD apps are instantly available to every subscriber the moment they're deployed to a network. USSD payment processing is performed by sending a text message to a service provider. When the service provider receives the text message, it either charges the amount of the purchase to an online payment system or adds the amount to the user's phone bill. The merchant then releases the goods or services, and the money is transferred to the company's account.
The network node can be a mobile switching center, visitor location register, home locator register or other network entity, such as an application platform, which has access to the specific USSD service. Technically, USSD enables the mobile station user and a public land mobile network operator-defined application to communicate in a way that's transparent to the mobile station user and to intermediate network entities. Groups of digits can be separated by additional asterisks.
The message is ended with a hashtag. Most of these MMI codes look similar, but they're classified into different groups and have different actions. Some are only used locally on the device, while some are sent to the subscriber identity module SIM and others are sent to the network.
Those codes control call forwarding or number presentation. However, this code isn't sent directly to the network, rather it's interpreted by the phone, which then constructs an Abstract Syntax Notation One ASN. It then depends on whether the network supports this code. One of the most used cases is a code for prepaid cards that users can use to check their balances.
However, the network operator really decides which code to use if it's not already taken. These codes, which are specific to the phone models, have been built in by the manufacturers to activate service menus or reset devices, for example. This code shows a device's international mobile equipment identifier. Unlike similar services, such as SMS and MMS, that are based on store-and-forward technology, USSD establishes a real-time session between a mobile handset and the application handling the service.
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