Patent Application
20070127658
The present disclosure generally relates to a system and method for detecting a false caller ID.
Customers have come to rely on caller ID to identify who is calling them. However, some parties are taking advantage of new technology to send false caller IDs. Typically, the caller ID is automatically generated by the phone system when a call is made. However, private exchange systems such as private branch exchange (PBX) networks allow multiple phones to be connected to a single service line. Accordingly, PBX type systems have the capability to generate different caller IDs corresponding with the particular phone connected. Further, recent marketing systems have become more sophisticated and include the technology to replace caller ID information to conceal the identity of the caller. Using a regular caller ID display, customers may easily mistake who is calling them. Currently, peripheral systems such as privacy manager cannot identify a false caller ID and, therefore, will not intercept calls with a false caller ID.
A system is provided for detecting a false caller ID according to one embodiment of the present invention. The system identifies a false caller ID by comparing caller identification data to other signaling system data. The signaling system data may include signaling system 7 (SS7) data. The signaling system data may be correlated with information stored in a database to determine if the signaling system data is consistent with the caller identification data. The system may also alert the intended recipient by modifying the properties of the call or by enacting a peripheral system to contact the intended recipient. These and other aspects and advantages will become apparent upon reading the following in combination with the accompanying drawings.
Referring to
An SSP may send a query message to a centralized database, such as a service control point (SCP), to determine how to route a call along the voice trunk between SSPs. The SCP can respond to the originating SSP providing appropriate routing numbers associated with the dialed number. Typically, the SSP connects with an SCP through a signal transfer point (STP). An STP is a packet switch that is generally used for routing signaling system data for a call. Accordingly, for each call a connection may be established along the voice trunk for rudimentary voice communication, while signaling information including caller ID, routing and other information is provided over a separate connection that is often packeted and routed through STPs. One implementation of a signaling system protocol is the signaling system 7 (SS7) protocol. Each signaling point in the SS7 network is uniquely identified by a numeric point code. The point codes are carried in signaling messages between signaling points to identify the source and destination of each message. Each signaling point uses a routing table to select the appropriate signaling path for each message. Accordingly, an STP routes each incoming message to an outgoing signaling link based on the routing information contained in the SS7 message. Because the STP acts as a network hub, it provides improved utilization of the voice trunks and eliminates the need for direct links between signaling points. As such, when a call is established from phone 24 to phone 12, system signaling data may be provided from SSP 20 to STP 26. STP 26 may then provide the signaling system data to SSP 16 to complete the signaling link.
Because the signaling system data is critical to call processing, STPs and SCPs generally are deployed in pairs with redundant connections allowing the same connections to be made through STP 26 as STP 28 and also providing access to either SCP 30 or 31 through both STPs 28 and 26. STPs, such as STP 28, may be in communication with other devices, such as an external database 32. For example, the external database 32 may including a line information database (LIDB) or a local number portability (LNP) database to support additional call functionality. Further, a peripheral system 34 may be in communication with STP 28 to provide voicemail or automated call management functions, such as a privacy manager system where certain numbers may be blocked or automatically forwarded to voicemail.
PBXs, such as PBX 36, can be connected directly to SSP 16. As previously mentioned, PBX 36 can provide a false caller ID to the SSP 16. Accordingly, functionality may be designed into one of the switches, for example SSP 16 or STP 28, to automatically check the caller ID information provided from PBX 36 by comparing the caller identification data with the other signaling system data. The caller identification data in the SS7 protocol includes the Address Signal Information of the Calling Party Number parameter. For example, the Address Signal Information may be compared to SS7 data including, but not limited to, the Charge Number parameter, the Jurisdictional Information Number, or other SS7 parameters. Although any of the current SS7 parameters including:
Further, the switch 16 or 28 may connect to a database such as an SCP 30 or an external database 32, such as an LIDB or LNP, to retrieve information that correlates to the signaling system data. Accordingly, the retrieved data may then also be compared to the caller identification data to determine if the retrieved data is consistent with the caller identification data. If some or all of the data is inconsistent, the switch can alter the call parameters before establishing the call connection. The switch may modify the call parameters. For example, the caller ID information may be modified to correct the caller ID information, including the Address Signal Information, or provide a warning message. In addition, the switch may vary the ring to identify that the call is from an unknown source.
In another aspect of the invention, the switch may forward the call or call information to a peripheral system 34. The peripheral system 34 may be configured to store the call information for later use by the intended recipient. Or alternatively, the peripheral system 34 may actively contact the intended recipient. The peripheral system 34 may contact the intended recipient at a later time or may hold the call and contact the intended recipient with an automated voice message providing information about the call and giving the intended recipient the option of connecting the call, terminating the call, or sending the call to voicemail.
As one skilled in the art can readily understand, the telephone network 10 may also expand across multiple local and national carriers. Accordingly, a phone 42 or PBX 44 may be connected to an SSP 40. The SSP 40 may be connected to the network of the intended recipient at phone 12 through a carrier exchange switch 38. Accordingly, various information may or may not be available within the signaling system data transmitted through the carrier switch 38. Although similar situated networks will also typically include STPs, such as STP 46, and SCPs, such as SCP 48, that may be connected to the network of the intended recipient through various means. Accordingly, one of ordinary skill in the art can see that in more complex networks, the present invention may be implemented at various switch points including SSPs 16, 20, and 40 or STPs 28, 26, or 46, as well as other switches within the network, such as central office switch 15, prior to the switch establishing a call connection to the intended recipient at the phone 12. In one embodiment, the switch may be located between the phone 12 of the intended recipient and the PSTN or other general networks, such as a VOIP network. Although it is clearly understood that the switch may be readily implemented at virtually any switch point in the network depending on the network topology.
Now referring to
In another embodiment of the present invention and illustrated in
Any of the switches including any of the SSPs, STPs, central office switches or peripheral systems may be a general computer system as shown in
In a networked deployment, the computer system may operate in the capacity of a server or as a client user computer in a server-client user network environment, or as a peer computer system in a peer-to-peer (or distributed) network environment. The computer system 90 can also be implemented as or incorporated into various devices, such as a personal computer (PC), a tablet PC, a set-top box (STB), a personal digital assistant (PDA), a mobile device, a palmtop computer, a laptop computer, a desktop computer, a communications device, a wireless telephone, a land-line telephone, a control system, a camera, a scanner, a facsimile machine, a printer, a pager, a personal trusted device, a web appliance, a network router, switch or bridge, or any other machine capable of executing a set of instructions (sequential or otherwise) that specify actions to be taken by that machine. In a particular embodiment, the computer system 90 can be implemented using electronic devices that provide voice, video or data communication. Further, while a single computer system 90 is illustrated, the term “system” shall also be taken to include any collection of systems or sub-systems that individually or jointly execute a set, or multiple sets, of instructions to perform one or more computer functions.
As illustrated in
In a particular embodiment, as depicted in
In an alternative embodiment, dedicated hardware implementations, such as application specific integrated circuits, programmable logic arrays and other hardware devices, can be constructed to implement one or more of the methods described herein. Applications that may include the apparatus and systems of various embodiments can broadly include a variety of electronic and computer systems. One or more embodiments described herein may implement functions using two or more specific interconnected hardware modules or devices with related control and data signals that can be communicated between and through the modules, or as portions of an application-specific integrated circuit. Accordingly, the present system encompasses software, firmware, and hardware implementations.
In accordance with various embodiments of the present disclosure, the methods described herein may be implemented by software programs executable by a computer system. Further, in an exemplary, non-limited embodiment, implementations can include distributed processing, component/object distributed processing, and parallel processing. Alternatively, virtual computer system processing can be constructed to implement one or more of the methods or functionality as described herein.
The present disclosure contemplates a computer-readable medium that includes instructions 114 or receives and executes instructions 114 responsive to a propagated signal, so that a device in communication with a network 116 can communicate voice, video or data over the network 116. Further, the instructions 114 may be transmitted or received over the network 116 via the network interface device 110.
While the computer-readable medium is shown to be a single medium, the term “computer-readable medium” includes a single medium or multiple media, such as a centralized or distributed database, and/or associated caches and servers that store one or more sets of instructions. The term “computer-readable medium” shall also include any medium that is capable of storing, encoding or carrying a set of instructions for execution by a processor or that cause a computer system to perform any one or more of the methods or operations disclosed herein.
In a particular non-limiting, exemplary embodiment, the computer-readable medium can include a solid-state memory such as a memory card or other package that houses one or more non-volatile read-only memories. Further, the computer-readable medium can be a random access memory or other volatile re-writable memory. Additionally, the computer-readable medium can include a magneto-optical or optical medium, such as a disk or tapes or other storage device to capture carrier wave signals such as a signal communicated over a transmission medium. A digital file attachment to an e-mail or other self-contained information archive or set of archives may be considered a distribution medium that is equivalent to a tangible storage medium. Accordingly, the disclosure is considered to include any one or more of a computer-readable medium or a distribution medium and other equivalents and successor media, in which data or instructions may be stored.
Although the present specification describes components and functions that may be implemented in particular embodiments with reference to particular standards and protocols, the invention is not limited to such standards and protocols. For example, standards for Internet and other packet switched network transmission (e.g., TCP/IP, UDP/IP, HTML, HTTP, SIP, H.323, etc.) represent examples of the state of the art. Such standards are periodically superseded by faster or more efficient equivalents having essentially the same functions. Accordingly, replacement standards and protocols having the same or similar functions as those disclosed herein are considered equivalents thereof.
The illustrations of the embodiments described herein are intended to provide a general understanding of the structure of the various embodiments. The illustrations are not intended to serve as a complete description of all of the elements and features of apparatus and systems that utilize the structures or methods described herein. Many other embodiments may be apparent to those of skill in the art upon reviewing the disclosure. Other embodiments may be utilized and derived from the disclosure, such that structural and logical substitutions and changes may be made without departing from the scope of the disclosure. Additionally, the illustrations are merely representational and may not be drawn to scale. Certain proportions within the illustrations may be exaggerated, while other proportions may be minimized. Accordingly, the disclosure and the figures are to be regarded as illustrative rather than restrictive.
One or more embodiments of the disclosure may be referred to herein, individually and/or collectively, by the term “invention” merely for convenience and without intending to voluntarily limit the scope of this application to any particular invention or inventive concept. Moreover, although specific embodiments have been illustrated and described herein, it should be appreciated that any subsequent arrangement designed to achieve the same or similar purpose may be substituted for the specific embodiments shown. This disclosure is intended to cover any and all subsequent adaptations or variations of various embodiments. Combinations of the above embodiments, and other embodiments not specifically described herein, will be apparent to those of skill in the art upon reviewing the description.
The Abstract of the Disclosure is provided to comply with 37 C.F.R. §1.72(b) and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. In addition, in the foregoing Detailed Description, various features may be grouped together or described in a single embodiment for the purpose of streamlining the disclosure. This disclosure is not to be interpreted as reflecting an intention that the claimed embodiments require more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive subject matter may be directed to less than all of the features of any of the disclosed embodiments. Thus, the following claims are incorporated into the Detailed Description, with each claim standing on its own as defining separately claimed subject matter.
The above disclosed subject matter is to be considered illustrative, and not restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments, which fall within the true spirit and scope of the present invention. Thus, to the maximum extent allowed by law, the scope of the present invention is to be determined by the broadest permissible interpretation of the following claims and their equivalents, and shall not be restricted or limited by the foregoing detailed description.
