FORM - 2
THE PATENTS ACT. 1970 (39 of 1970)
COMPLETE SPECIFICATION (Section 10, rule 13)
METHOD FOR HOTSPOT BASED CALLING AND MESSAGING IN ZERO
BALANCE MOBILE PHONES
Prof. S S Deshmukh , Sumit Kumar, Ahillya S Bote, Ritika Gupta and Chaitali Bagul
Residing at Pimpri Chinchwad College of Engineering, Computer Engineering department Nigdi, Pune 411 044, Maharashtra, India.
THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE NATURE OF THE INVENTION AND THE MANNER IN WHICH IT IS TO BE PERFORMED: -

FIELD OF THE INVENTION:
This invention relates to the field of Smart mobile phones that use reconfigurable chip
hardware.
Particularly, this invention relates to a chip for calling and messaging from zero balance
mobile phones that are equipped with it.
More particularly, this invention relates to calling and messaging in spite of zero balance.
BACKGROUND OF THE INVENTION:
In mobile phones, we often face problem of low balance during emergency. We are hot able to call or send messages. Hence, we seek others' help and use their phones.
The problems in existing systems of the prior art include the following:
1. Privacy of other users is not preserved. The borrower or the person with zero balance can tamper with other users personal data.
2. Helper cannot use his/her mobile phone.
3. No flexibility is provided in balance transfer.
4. We cannot transfer balance between different service providers.

PRIOR ART:
According to the prior art, we cannot call or send messages from zero balance mobile phones. Also, when we seek others mobile phone, private data of that mobile is vulnerable to unwanted usage.
In prior art, we can also transfer balance from one mobile to another but our system ensure calls without doing balance transfer from one mobile to other. Also in prior art balance transfer cannot be done for different service providers.

Analysis of relevant patents- International search

Sr. Patent Number Abstract Assignee Priority
no. Date
1. The invention relates to a ZTE 2009-10-19
:N01692725A-
Method and system for implementing telephone charge transfer between terminals method and a system for implementing telephone charge transfer between terminals. The system comprises a first terminal, a second terminal and a network side charge network element. The method comprises the following steps that: a user sends a telephone charge transfer request to a network side through the first terminal, and the telephone charge transfer request at least carries the sum of charge to be transferred and the number information of the second terminal to which the charge sum is transferred; and after the network side receives the request and judges that the sum of the charge to be transferred does not exceed the charge balance in the account of the first terminal, charge of the sum of the charge to be transferred is subtracted from the account of the first terminal and added in the account of the second terminal. By using the method and the system of the invention, a user can conveniently make use of a personal mobile phone terminal to carry out telephone charge transfer from the personal mobile phone terminal to any intra-network terminal; and telephone charge transfer operation is not limited by time and place (as long as signal is available) and is Corporation

simple and easy to implement.
2. US7613449B2 Embodiments of the present invention relate to a messaging CVON Innovations 2007-06-25
Messaging system for managing communications resources system for managing communications resources and are particularly suitable for providing a means for subscribers of a telecommunications network to continue participating in a communications service that would otherwise be ended due to the calling party having a low or zero balance. Embodiments of the invention are generally applicable to users of a mobile network.
Embodiments of the invention provide a messaging system for use by the telecommunications network to transmit a message to a remote party, where the remote party is identified by means of a telephone calling identifier associated with a call setup request for a telecommunications session received from a user of the telecommunications network. The messaging system comprises a storage system for storing data providing a predetermined definition of message content to be sent to the remote party. In response to trigger event such as determining that the account balance available for said user participating in the requested communications session is below a predetermined threshold, the messaging system is arranged to initiate the transmission of a message to said remote party. The transmitted message contains message content that is defined Ltd

at least in part by said definition of message content and can comprise a "call me message". This thereby ensures that a "call me" message reaches the remote party.
3. US20040192359A1
Mobile invoked 'call me' back system for wireless subscribers with insufficient account balances Disclosed is a mobile invoked 'call me' back system for wireless subscribers with insufficient account balances disclosed herewith enables mobile subscribers who have insufficient and/or no funds in their prepaid account, to continue using their mobile service nonetheless by initiating a free (in the preferred embodiment) 'call me' SMS (Short Message Service) to another mobile subscriber (or equally equipped land-line phone with such capabilities) who then, expectantly, returns the call. Mcraild Christopher Shvam Sheth 2003-03-31
4. US7269431B1
System for forwarding SMS messages to other devices Improved techniques for communicating short messages forward an electronic message to an alternate communications device if the system is unable to deliver the short message to a destination communications device. The electronic message is formatted to be compliant with the alternate communications system. Alternatively, the short message may be formatted in compliance with a destination communications device that is not short message compliant and sent to the destination communications device. In some embodiments of the present invention, a method for AT&T Mobilitv II LLC 2004-01-16

communicating short messages includes forwarding an electronic message to a first communications device, the forwarding in response to at least an indicator of unsuccessful delivery of a short message to a destination communications device. The first communications device may be incompatible with short message service. The forwarding may be enabled from the destination communications device, the first communications device, or a web browser.
5 US8675841B2
Call management protocol for insufficient credit A method and system for operating a telephone service are disclosed, in which callers with insufficient credit or network airtime are able to contact a call recipient. The network monitors call attempts from callers to identify call attempts from callers with insufficient credit or airtime to make a call. When such a call attempt is detected, a call request is transmitted to the intended recipient of the call, to notify the recipient of the call attempt. The notification may take the form of an in-call notification if the call recipient is on-line, or an SMS or voicemail message if the recipient is off-line. The method and system permit individuals who otherwise would not be able to access the network to indicate to a call recipient that they have attempted to contact the call recipient. The call recipient can then contact the would be caller at his/her discretion. Starscriber Corp 2003-05-08

OBJECTS OF THE INVENTION:
The object of the invention is to provide a system which will be used to call or send messages in spite of zero balance.
This system will solve this problem of zero balance by creating a wireless network/hotspot. The goal of this project is to integrate the cellular and wireless networks. We are proposing a system/method using reconfigurable chip that facilitates one user to make use of balance of other user to make calls and send SMS. Another objective is to provide security and privacy to both users so that nori trustworthy communication and usage of this system/method will be avoided.
SUMMARY OF INVENTION:
According to this invention, we are proposing a system/method that has following features:
System/method which will allow the person with zero balance (seeker) to connect to the person having sufficient balance (helper) through hotspot so that the seeker can make a cail/message to other user.
Privacy of helper will be maintained from seeker. Also, helper can use his/her mobile phone during the process.
This method/system helps minimize the drop of calls when user reaches zero balance.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS:
The invention will now be described in relation to the accompanying drawings, in which:
Figure 1 illustrates overview of the system. Figure 2 illustrates overall working of the system.
DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWINGS:
In figure 1, the architecture shows 3 smart phones; say A, with zero balance, B with sufficient main balance, and C that A wants to communicate with. In this system, User A and User B are equipped with the chip in their smart phones and a supporting application for user interface. The seeker will request to turn on the hotspot and provide service after the authentication. User A will send a request message specifying the type of service, viz. text message or phone call. The helper then receives the message and provides service accordingly and acts as a router between these two users for successful communication.
User A and user B are connected through Wi-Fi network. User B and User C are connected through Cellular network.
Figure 2 represents the overall working of the system in which mobile phone A and B are equipped with reconfigurable chip and mobile phone C is with/without chip. Initially, secure wireless connection through hotspot is established between mobile phone A and B using. Mobile phone A sends Caller ID of mobile phone C in case of calling and for

sending SMS, Caller ID and encrypted message will be send to mobile phone B. Then
mobile phone B calls mobile phone C using cellular network. Mobile phone B acts as the
router between mobile phone A and C which sends and receives voices to mobile phone
A and C. For sending message, mobile phone A sends encrypted message to mobile
phone B and then in background while sending message to mobile phone C message will
be decrypted. After successful call establishment and message send the hotspot
connection will be turned off.
Reference numeral 1 relates to mobile phone A(seeker) with chip.
Reference numeral 2 relates mobile phone B (helper) with chip.
Reference numeral 3 relates to User C, whom the user wants to communicate with and is
with/without chip.
Reference numeral 4 relates to the secure wireless connection establishment via hotspot
between mobile phone A and B.
Reference numeral 5 relates to calling facility in which Caller ID of mobile phone C will
be sent to mobile phone B.
Reference numeral 6 relates to call establishment between mobile phone B and C using
cellular network.
Reference numeral 7 relates to sending and receiving voices through wireless network
and cellular network.
Reference numeral 8 relates to sending encrypted message from mobile phone A to
mobile phone B.

Reference numeral 9 relates to sending decrypted message from mobile phone B to mobile phone C.
Reference numeral 10 relates to turning off the hotspot and connection after successful call establishment and message send. The novel features include:
a system which can make call and send messages inspite of zero balance whereas in existing system users cannot make call or send message.
a system with increased privacy for the helper(user with sufficient balance) whereas in existing system, privacy is disturbed.
a system wherein a greater flexibility is provided as compared to existing system in which balance transfer cannot take place between same service providers, a system wherein Wi-Fi connection is used between user with sufficient balance and user with zero balance. Also cellular network is used between intended caller and user with sufficient balance.
While this detailed description has disclosed certain specific embodiments of the present invention for illustrative purposes, various modifications will be apparent to those skilled in the art which do not constitute departures from the spirit and scope of the invention as defined in the following claims, and it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the invention and not as a limitation.

Our claim,
1. We claim,
A chip with supporting application which will allow seeker to connect to the helper through hotspot so that the seeker can make a call/message to other user. Privacy of helper will be maintained from seeker. Also, helper can use his/her mobile phone during the process. This project helps to minimize the drop of calls when user reaches zero balance.
2. We claim,
A system as claimed in claim 1 wherein, seeker is the person having zero balance.
3. We claim,
A system as claimed in claim 1 wherein, said helper is the person with sufficient balance.
4. We claim,
A system as claimed in claim 1 wherein, said helper and seeker are connected through Wi-Fi network whereas, helper and intended caller is connected through cellular network.
5. We claim,
A system as claimed in claim 1 wherein, said privacy will be maintained through proper authentication, also the messages will be in the encrypted form so that they are not visible to helper.