Technical Field

The present invention relates to a system for enabling persons to answer calls transmitted from mobile or fixed networks by means of voice (VoIP) technology over IP.

Background of the Invention

Today subscribers, users can establish wireless communication with each other wirelessly over GSM networks by using their electronic devices. Due to the fact that voice and mobile data provide service on different infrastructures in GSM networks, users can make phone calls with other persons by using mobile voice network at any time. However, GSM subscribers may not reach each other due to failures and/or interruptions in the mobile voice network. Besides, users can communicate with other persons over mobile data network by using mobile data networks. In current solutions, users can transmit call to each other or answer incoming calls over mobile VoIP applications. In case of using mobile applications in current solutions, users need to get a new number or minutes by paying additional fee.

Due to the above-mentioned reasons, there is need for a system for enabling persons to answer calls transmitted from mobile or fixed-line numbers which enables to transmit the incoming calls from a Wi-Fi network or over a mobile data network to the related user by means of VoIP in cases where the user cannot reach the mobile voice network by ensuring that the incoming calls are managed on the mobile application, and enables the person to answer the call. The United States patent document no. US20190037071, an application in the state of the art, discloses a system for sending voice communication request to fixed-line or mobile network numbers of users by user’s phone number over an application based on over-the-top (OTT) and receiving voice communication request from fixed-line or mobile network numbers, and an operation method of this system. The system in the said invention enables users to realize high-quality call over network connections such as local area network, WiFi network by signing up over a cellular phone number from wireless devices. In the said invention, the VoIP cloud managing the internet network connections can determine the approximate location of the wireless device by performing location- based scanning over the IP address of the wireless device and can assign an alias phone number -that is suitable for the location of the wireless device- to the wireless device of the user from the database of the alias phone number used for connection routing. However, this invention does not disclose that OTT-based application is registered to mobile IMS network by using IMSI information and OTT application remains registered in life cycle.

Summary of the Invention

An objective of the present invention is to realize a system for enabling persons to answer calls transmitted from mobile or fixed-line numbers which enables to transmit the incoming calls from a Wi-Fi network or over a mobile data network to the related user by means of VoIP in cases where the user cannot reach the mobile voice network by ensuring that the incoming calls are managed on the mobile application; the user to answer the incoming call; and in cases where the user cannot reach the mobile voice network, ensures that the related user is billed over his/her own tariff by preventing him/her from paying additional fee. Another objective of the present invention is to realize a system for enabling persons to answer calls transmitted from mobile or fixed-line numbers which can operate without needing a different signalling interconnection or any service integration by operating in full-IP with real SIM cards and real numbers as it is identified over the IMS network.

Detailed Description of the Invention

“A System for Enabling Persons to Answer Calls Transmitted from Mobile or Fixed-Line Numbers” realized to fulfil the objective of the present invention is shown in the figure attached, in which:

Figure 1 is a schematic view of the inventive system for enabling persons to answer calls transmitted from mobile or fixed-line numbers.

The components illustrated in the figure are individually numbered, where the numbers refer to the following:

1. System

2. Primary electronic device

3. S econdary el ectroni c devi ce

4. Application

5. Registry server

6. Signalling server U. User

N. Network

The inventive system (1) for enabling persons to answer calls transmitted from mobile or fixed-line numbers, which enables persons to answer calls transmitted from mobile or fixed networks by means of voice (VoIP) technology over IP comprises: at least one primary electronic device (2) which is in communication with the network (N), and configured to originate call over the network (N); at least one secondary electronic device (3) which is configured to enable the user (U) to realize data exchange with wireless communication networks; at least one application (4) which runs on the secondary electronic device (3), and configured to convey the call -that is originated by means of the primary electronic device (2) - over IP and then take it to the secondary electronic device (3); at least one registry server (5) which is in communication with the application (4), and is configured to enable the user (U) to be registered to the application (4); and at least one signalling server (6) which is in communication with the application (4), and configured to ensure that the call answered by means of the application (4) and originated from the primary electronic device (2) is managed.

In an embodiment of the invention, the network (N) is a mobile IMS network and/or a mobile voice network.

The primary electronic device (2) included in the inventive system (1) is a device such as mobile phone, fixed-line telephone, tablet, computer or smart watch configured to realize data exchange with the network (N).

The secondary electronic device (3) included in the inventive system (1) is a device such as mobile phone, tablet, computer or smart watch used by the user (U). A SIM card is included on the secondary electronic device (3). The secondary electronic device (3) is configured to enable the user (U) to communicate with other persons by a pre-determined international mobile subscriber identity (IMSI - International Mobile Subscriber Identity) and mobile number (MSISDN) by means of the SIM card on itself. The secondary electronic device (3) is configured to identify the voice data transmitted over IP.

The application (4) included in the inventive system (1) is configured to transmit voice data by secure real-time transport protocol (STRP) and session initiation protocol (SIP). The application (4) is configured to contain session initiation (SIP) client o itself. The application (4) is configured to transmit voice data of the user (U) to the mobile IMS network (N) by real-time transport protocol. The application (4) is configured to enable the user (U) to initiate the registry process by the mobile number on the SIM card included in his/her secondary electronic device (3). The application (4) is configured to ensure that the user (U) is registered to the signalling management unit in the signalling server (6) by the mobile number on the SIM card included in his/her secondary electronic device (3). The application (4) is configured to carry out authentication and registration process of the user (U) by using digest authentication method in session initiation protocol whenever it is activated on the secondary electronic device (3). In addition, the application (4) is configured to transmit mobile number information of the user (U) to the registry server (5) by representational state transfer (REST) and/or simple object access protocol (SOAP) interfaces by means of hypertext transfer protocol secure (HTTPS) following the first registry. In another embodiment of the inventive system (1), transmission of calls on the mobile voice network (N) is performed by means of terminated intelligent network services as an alternative to unconditional call forwarding service. In one embodiment of the invention, the application (4) is configured to allow the user (U) to mark at least one option enabling to answering calls incoming from fixed-line or mobile numbers to the mobile number over itself. The registry server (5) included in the inventive system (1) is configured to ensure that the user (U) is registered to the application (4) by the mobile number that is identified in the SIM card included in the secondary electronic device (3), and the related mobile number is by means of provisioning services of the mobile IMS network (N). The registry server (5) is configured to establish communication with the application (4) by services determined and customized by means of representational state transfer and/or simple object access protocol interfaces over hypertext transfer protocol secure. The registry server (5) is configured to enable operation of the mobile number with the application (4). In addition, the registry server (5) is configured to control whether the mobile number is a user of the mobile network (N) operator or not by means of the mobile network (N) provisioning services on itself. The registry server (5) is configured to save receiving, answering the calls of the mobile number -that are received from mobile or fixed networks (N)- over the application (4) to at least one database included on itself. The registry server (5) is configured to transmit information of receiving the calls of the mobile number -that are received from mobile or fixed networks (N)- over the application (4) to the application (4) by means of a push notification service that contains the mobile identity number information enabling its registry to the mobile IMS number (N). In addition, the registry server (5) is configured to transmit the transmission messages to the application (4) by means of the interfaces that are provided by the manufacturing company of the operating program of the secondary electronic device (3) whereon the application (4) runs. In one embodiment of the invention, the registry server (5) is configured to forward the mobile number of the user (U) to a unique number determined in the mobile voice network (N) by using an unconditional call forwarding service. In one embodiment of the invention, the registry server (5) is configured to carry out this process over the provisioning services of the mobile network (N) by means of web services determined by the representational state transfer interfaces over hypertext transfer protocol secure. In another embodiment of the invention, the registry server (5) is configured to ensure that calls reaching the user (U) are forwarded to the application (4) by determining intelligent network detection point in the mobile network (N) by means of the mobile network (N) provisioning services located on itself when the user (U) marks the option enabling to receive the calls incoming from fixed-line or mobile numbers to his/her mobile number over the application (4), from the settings located on the application (4).

The signalling server (6) included in the inventive system (1) is configured to communicate with the mobile IMS network (N), and to ensure that calls sent to the application (4) are managed by using the mobile number. The signalling server (6) is configured to communicate with the application (4) and the mobile IMS network (N) by means of session initiation protocol (SIP). The signalling server (6) is configured to ensure that the application (4) is registered to the mobile IMS network (N) by using its international mobile subscription identity connected with the mobile number and the applications (4) are registered in life cycle. The signalling server (6) is configured to enable the user (U) to receive the calls originated to his/her mobile number from the related mobile IMS network (N) by ensuring that the application (4) is registered to the mobile IMS network (N), and the call request is transmitted by ensuring that all applications (4) are excited at the same time. The signalling server (6) is configured to communicate with the application (4) over a session initiation protocol. In addition, the signalling server (6) is configured to communicate with the mobile IMS network by means of a session initiation protocol. The signalling server (6) is configured to initiate that the related mobile number becomes subscriber to the registry status in the mobile IMS network (N) by ensuring that the application (4) remains registered in the IMS network and the register refresh transaction is carried out, while it enables the user (U) to receive or cancel call over the application (4). The signalling server (6) is configured to notify the changes in the registry status of the mobile number included in the mobile IMS network (N) to the units that are subscribed to the registry status, while it enables the user (U) to receive or cancel call over the application (4). The signalling server (6) is configured to initiate the register refresh transaction after it notifies the changes in the registry status of the mobile number included in the mobile IMS network (N) to the units that are subscribed to the registry status and then accesses the information that the register transactions are terminated on this notification, while it enables the user (U) to receive or cancel call over the application (4). The signalling server (6) is configured to hold the call request and send the related call notification to the application (4) by means of transmission notification, it enables transaction of forwarding the incoming call to the user (U). In addition, the signalling server (6) is configured to transmit the call request that is hold by it to the application (4) by standard methods specified by means of session initiation protocol over internet protocol (IP) after ensuring that the register of the application (4) is completed successfully, while it enables transaction of forwarding the incoming call to the user (U).

In the inventive system (1), the user (U) makes a request to use the application (4) over the secondary electronic device (3) and the necessary registry transactions are carried out. The user (U) activates the setting stating that s/he wants to receive the calls incoming from fixed-line or mobile numbers to his/her mobile number, over the application (4) from the settings included on the related application (4). Then, a call is originated to the mobile number of the user (U) over the primary electronic device (2). The originated call is transmitted to the mobile IMS network (N) in the system (1). The mobile IMS network (N) transmits the call request to the signalling server (6) by standard methods specified in the session initiation protocol over the IP protocol. The signalling server (6) included in the inventive system (1) transmits the related call notification to the application (4) in the system (1) by means of correct transmission information by holding the call request. The transmission notification is transmitted to the user (U) by means of the interface provided by the operating program company of the secondary electronic device (3) whereon the application (4) runs. In one embodiment of the invention, this information is notified to the user (U) by web transmission notification when the user (U) logs in first while the web application (4) is being used. Then, the application (4) in the system (1) receives the notification of the call incoming by the mission notification and refreshes its registry. Thereafter, upon the registry of the application (4) is completed successfully, the signalling server (6) included in the inventive system (1) transmits the call request that is hold by it to the application (4) by standard methods in the session initiation protocol over internet protocol. In addition to this, when the user accepts the call request incoming over the application (4), voice transmission is initiated between the calling number and the user (U). The call request included on other applications (4) are terminated. The application (4) wherein the call request is accepted transmits the voice packets directly to the media server that is indicated by the mobile IMS network (N) to it during call set-up, by means of signalling. Lastly, the mobile IMS network (N) in the system (1) provides the voice transmission between the calling number and the application (4) wherein the call request is accepted bidirectionally.

With the inventive system (1), it is ensured that the incoming calls are transmitted from a Wi-Fi network (N) or over a mobile data network (N) to the related user (U) by means of VoIP in cases where the user (U) cannot reach the mobile voice network (N) by ensuring that the incoming calls are managed on the mobile application (4); the user (U) to answer the incoming call; and in cases where the user (U) cannot reach the mobile voice network (U), the related user (U) is billed over his/her own tariff by preventing him/her from paying additional fee. It is possible to develop various embodiments of the inventive system (1) for enabling persons to answer calls transmitted from mobile or fixed-line numbers; the invention cannot be limited to examples disclosed herein and it is essentially according to claims.