Systems and methods for providing a fixed mobile convergence service

A method for providing a Fixed Mobile Convergence (FMC) service, the method comprising:

• receiving, by a processor (202) associated with a Business Telephony Application Server (BTAS) (102) in a system (100), at least one of a contact number and a short code associated with a first user of a Central exchange (Centrex) group, dialed by a second user using at least one of a mobile device (110) or a fixed line device (110), wherein the contact number and the short code corresponds to at least one of a mobile number and a fixed line number associated with the first user of the Centrex group;
• establishing, by the processor (202), a connection between the BTAS (102) and an Internet protocol Multimedia Subsystem (100) (IMS) core network (106) associated with an IMS server (106), when the second user dials the mobile number and the fixed line is linked to the mobile number;
• invoking, by the processor (202), upon establishing the connection between the BTAS (102) and the IMS core network (106), at least one of a Fixed Mobile Convergence (FMC) create service and a FMC update service, to trigger a modification of an Initial Filter criteria (IFC) service chaining data in the IMS core network (106);
• converting, by the processor (202), the short code to a relevant at least one of the fixed line number and the mobile number, when the second user dials the short code;
• in response to the conversion, transmitting, by the processor (202), one or more invite request messages to the IMS core network (106) associated with the mobile number link to the fixed line;
• in response to the transmission, triggering, by the processor (202), a ringing mode on the mobile device (110) and the fixed line device (110), to establish a call;
• and
• establishing, by the processor (202), the call between at least one of the mobile device (110) or the fixed line device (110) associated with the second user, and at least one of the fixed line device (110) or the mobile device (110) associated with the first user, respectively.

A User Equipment (UE) for providing a Fixed Mobile Convergence (FMC) service, the UE comprising:

• a processor;
• and
• a memory coupled to the processor, wherein the memory comprises processor-executable instructions, which on execution, cause the processor to:
• transmit at least one of a contact number and a short code associated with a first user of a Central exchange (Centrex) group, dialed by a second user using at least one of the user equipment, wherein the contact number and the short code correspond to at least one of a mobile number and a fixed line number associated with the first user;
• and
• establish a call between the user equipment associated with the second user and the first user.

A non-transitory computer readable medium comprising machine-readable instructions that are executable by a processor to:

• receive at least one of a contact number and a short code associated with a first user of a Central exchange (Centrex) group, dialed by a second user using at least one of a mobile device (110) or a fixed line device (110), wherein the contact number and the short code corresponds to at least one of a mobile number and a fixed line number associated with the first user of the Centrex group;
• establish a connection between a Business Telephony Application Server (BTAS) (102) and an Internet protocol Multimedia Subsystem (100) (IMS) core network (106) associated with an IMS server (106), when the second user dials the mobile number and the fixed line is linked to the mobile number;
• invoke, upon establishing the connection between the BTAS (102) and the IMS core network (106), at least one of a Fixed Mobile Convergence (FMC) create service and a FMC update service, to trigger a modification of an Initial Filter criteria (IFC) service chaining data in the IMS core network (106);
• convert the short code to a relevant at least one of the fixed line number and the mobile number, when the second user dials the short code;
• in response to the conversion, transmit one or more invite request messages to the IMS core network (106) associated with the mobile number link to the fixed line;
• in response to the transmission, trigger a ringing mode on the mobile device (110) and the fixed line device (110), to establish a call;
• and
• establish the call between at least one of the mobile device (110) or the fixed line device (110) associated with the second user, and at least one of the fixed line device (110) or the mobile device (110) associated with the first user, respectively.