Abstract:
An example disclosed method comprises receiving a combined signal at a customer premises, the combined signal including a first signal associated with a first frequency range and a second signal associated with a second frequency range larger than the first frequency range, monitoring for power outages at the customer premises, and when no power outage at the customer premises is detected, switching the second signal for distribution at the customer premises using a wireline distribution system integrated in the customer premises, and switching the first signal for distribution at the customer premises using a wireless distribution system and without using the wireline distribution system.

Description:
RELATED APPLICATION(S) 
     This patent arises from a continuation of U.S. patent application Ser. No. 12/425,165 (now U.S. Pat. No. 7,995,601), filed on Apr. 16, 2009, which is a continuation of U.S. patent application Ser. No. 11/112,840 (now U.S. Pat. No. 7,525,959), filed on Apr. 22, 2005, which is a continuation of U.S. patent application Ser. No. 09/679,091 (now U.S. Pat. No. 6,917,624), filed on Oct. 4, 2000, which is a continuation of U.S. patent application Ser. No. 08/966,926 (now U.S. Pat. No. 6,141,356), filed on Nov. 10, 1997, the contents of which are hereby incorporated in their entirety herein for all purposes. 
    
    
     FIELD OF THE DISCLOSURE 
     This disclosure relates to distributing high-speed digital data information and lower speed data including Plain Old Telephone Service (“POTS”) voice signals throughout a customer premises. 
     BACKGROUND 
     The Internet is a worldwide interconnection of computers that offers a vast array of multimedia audio, video, graphics, and text information accessible from a user&#39;s home computer. The available multimedia content on the Internet requires millions of bits of digital data to be transmitted or downloaded to the user&#39;s computer. Conventional voice-band data modems used to access the Internet, however, use a serial telephone line connection transmitting data at less than 56 kilobits per second. The user&#39;s ability to quickly obtain and view information using a conventional telephone line connection is thus substantially limited. 
     The desire to bring large amounts of multimedia digital data from the Internet into the home has increased the demand for high-speed data services such as Integrated Services Digital Network (“ISDN”) and Digital Subscriber Lines (“DSL”) to the home or small business office. In addition to Plain Old Telephone Service (“POTS”), telephone operating companies are now offering these high-speed data services to bring digital data from the telephone company central office to the telephone subscriber&#39;s home or office. High-speed data and POTS are often carried to the home at different frequencies on the same physical wire pair. 
     Once to the telephone subscriber&#39;s home, these high-speed data services must be distributed throughout the home or office to the locations where computer users are located. Existing homes typically do not have wiring facilities to distribute high-speed data. At a typical customer premises, such as the family home, the telephone company delivers conventional POTS and high-speed data services to a network interface device (“NID”) located outside of the building. From the NID, a pair of conductive telephone wires delivers POTS to the rooms in the home where telephones are located. To distribute high-speed data services in addition to supplying POTS, however, additional wiring must ordinarily be installed throughout the customer premises. Installing additional wiring to each desired location throughout the premises, however, can be expensive and disruptive to those living or working there. 
     To avoid the cost and disruption of installing new wiring, wireless data distribution systems have been proposed to distribute high-speed digital data throughout the customer premises location without such disruption or installation costs. Wireless distribution systems, however, typically have less bandwidth capacity than a wireline system. Wireless distribution systems may also create or be susceptible to interference with other electronic devices that are commonly found in an office environment. Thus, higher performance wireless systems that are less susceptible to interference and have higher bandwidth capacity are more complex and considerably more expensive than a wireline distribution system. Additionally, high-speed data terminals are typically placed at a fixed location, whereas voice and portable low-speed data terminals would often benefit from mobility in and near the customer premises. 
     In accordance with an illustrative embodiment of the present invention, the problems of distributing both high-speed data and POTS signals throughout a customer premises can be addressed without the cost and disruption of installing new wiring or cost and complexity of wireless data networks. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The foregoing and other objects, features and advantages of the present invention will be more readily appreciated upon reference to the following disclosure when considered in conjunction with the accompanying drawings, in which: 
         FIG. 1  shows a system diagram of the local loop between the customer premises and telephone service provider central office in accordance an aspect of the present invention; 
         FIG. 2  shows a block diagram of the method according to an aspect of the present invention; 
         FIG. 3  shows a schematic diagram of the customer premises location of the system of  FIG. 1 ; 
         FIG. 4  shows a block diagram of the POTS splitter of the system of  FIG. 1 ; and 
         FIG. 5  shows a block diagram of the backup power feature in accordance with another aspect of the present invention. 
     
    
    
     DETAILED DESCRIPTION 
     While the invention is described below in some detail with reference to certain illustrated embodiments, it is to be understood that it is not limited to those embodiments. On the contrary, the intent is to cover all modifications, alternatives and equivalents falling within the spirit and scope of the invention as defined by the appended claims. 
     The present embodiment provides an information distribution system within a customer premises location using a wireline distribution network for distributing high-speed data and a separate wireless distribution network for distributing POTS and lower speed data. The customer premises location receives high-speed digital data such as computer, video, multimedia data containing audio, graphics, and text, and lower speed data including POTS voice band frequencies from the public switched telephone network (“PSTN”). The PSTN includes those public switched telephone networks provided by AT&amp;T, Regional Bell Operating Companies (e.g., Ameritech, U.S. West, Bell Atlantic, SBC, Bell South, NYNEX, and Pacific Telesis Group) and others. A POTS splitter separates the high-speed digital data from the lower speed POTS signals. Lower speed POTS signals are distributed throughout the customer premises on the wireless distribution system rather than the existing wireline distribution system. The wireless system may also have multiple channels to provide additional POTS lines and distribute lower speed data. The wireline distribution network can then be used to distribute the high-speed digital data throughout the customer premises. 
     The present embodiment provides the distribution of high-speed data and lower speed POTS signals on separate wireless and wireline network distribution facilities to avoid the cost and disruption of installing additional wiring at the customer premises. The wireless distribution system carries lower speed data and has relatively lower bandwidth requirements, reducing the complexity and cost of the wireless distribution system. The wireless distribution system also provides cordless operation allowing users to access the telephone in different areas throughout the customer premises and freely move about while speaking on the telephone. The existing telephone wiring is free from carrying POTS and can be utilized to carry high-speed data typically associated with digital computer data or multimedia information. Using the wireline distribution network, the high-speed data is available at outlets throughout the customer premises for connection to computers, computer peripherals, and video display devices. 
     The present embodiment also provides for the distribution of POTS signals and lower speed data over the existing wireline system in the event of a power failure or outage. During a loss of power, the wireless distribution network is typically out of service. Lower speed POTS is thus switched over to the wireline distribution network to provide service in the event of a power failure. 
     As shown in  FIG. 1 , the subscriber location or customer premises  20  is in communication with the telephone service provider central office  24  using a local loop  22  carrying both POTS analog voice signals and high-speed digital data traffic between the customer premises  20  and the telephone service provider central office  24 . The local loop  22  may take different forms but is typically a twisted pair of copper wires providing plain old telephone service (“POTS”) or 1 measured business service to the customer location. The local loop  22  may also provide high-speed communication services such as integrated services digital network (“ISDN”) or higher rate services such as Primary Rate Interface (“PRI”) or 24 channel T 1  service. In the present embodiment, the local loop preferably includes a high-speed digital subscriber line  26  (“DSL” or “XDSL”) such as a high-speed digital subscriber loop (“HDSL”), asymmetric digital subscriber loop (“ASDL”) or rate adaptive digital subscriber line (“RADSL”). Alternatively, a digital carrier system  26  provides digital data lines which enable subscribers  28  to transmit large amounts of digitally multiplexed data traffic over the POTS twisted pair telephone line  29 . The remote terminal  27  combines a plurality of subscribers  28  onto a digital multiplexed data line  25  for transmission between the subscriber location  28  and the central office  24 . For example, a 24-channel digital multiplexed T 1  line is commonly used in North America for the multiplexed data line  25 . T 1  typically uses wire pairs using 16 to 24 gauge cable carrying data at the 1.544 Mbps DS 1 line rate. In addition, fiber optic cable carrying a number of multiplexed channels of information may also be used in accordance with the present embodiment. 
     Preferably, ADSL is used to implement a subscriber loop with high-speed data capacity. ADSL implements a digital subscriber line  22  with asymmetric data rates between the customer premises and the central office, meaning the maximum available “downstream” data rate from the central office  24  to the subscriber location  20 ,  28  is greater than the maximum “upstream” data rate from the subscriber  20 ,  28  back to the central office  24 . ADSL can provide data rates of up to 8 megabits-per-second (“Mbs”) over 2 miles of twisted-pair wiring to provide a variety of digital data signals supporting computer, multimedia and video data, while providing POTS over the same line. A typical ADSL system provides a 1.5 Mbs rate from the central office  24  to the subscriber  20 ,  28  and about 640 kilobits-per-second (“Kbs”) in the reverse direction from the subscriber location  20 ,  28  to the central office  24 . ADSL may use discrete multi-tone (“DMT”), carrierless amplitude and phase (“CAP”) or even quadrature amplitude modulation (“QAM”) line coding. The American National Standards Institute&#39;s T1E1.4 committee has selected DMT as the ADSL standard. 
     Alternatively, the local loop may also include a wireless local loop (currently being deployed primarily in developing countries without existing communication infrastructure facilities and now available in the United States). The wireless local loop  30  provides communication from the central office  24  to the customer premises  32  without requiring new cable plant between the central office  24  and the customer premises  32 . A wireless local loop  30  may use a transmitter  34  at the central office  24 , transmitting microwave radio frequencies to a radio frequency receiver using an antenna  36  at the customer premises  32 . The wireless local loop  30  can implement any of the ISDN, PRI, DSL, or high-capacity 24 channel T 1  lines described above. In addition, fixed-satellite wireless communication systems allowing communication service to be directly received at the subscriber location from earth orbiting satellites are also available from companies such as Hughes Network Systems and Motorola Inc. Such systems are currently being deployed in developing countries. 
     The local loop, in its various forms  22 ,  26 ,  30 , carries POTS and high-speed data signals between the subscriber locations  20 ,  28 ,  32  and the telephone service provider central office  24 . POTS signals are typically analog voice band signals within the 200 Hz to 4 KHz frequency range. In comparison, high-speed digital data is usually carried at carrier frequencies several orders of magnitude higher than the voice band frequency range. For example, lower speed POTS signals may be carried in the 0 to 10 KHz frequency range, while ADSL carries high-speed data in the frequency range from 100 KHz up to 1 MHz or at even higher. Thus, POTS signals and high-speed data are carried over the same local loop facility at different frequencies. 
       FIG. 2 , summarizes the present method of implementing the described embodiment. At step  110 , combined high-speed and lower speed POTS signals from the local loop is separated onto separate facilities. Preferably, the high-speed data is separated from the lower speed POTS signals onto physically separate lines as described in connection with the description of the POTS splitter of  FIG. 3 . At step  120 , the separated lower speed POTS signals are distributed over a wireless distribution system, rather than the conventional in-house POTS telephone wiring. At step  130 , high-speed data is distributed over the existing wireline ordinarily used for distributing POTS within the customer premises. The details of the present method are further described below in connection with the present embodiment. 
       FIG. 3  shows a diagram of a telephone subscriber location or customer premises  20  such as a typical home or small business office. The local loop  22  between the customer premises  20  and the central office  24  is terminated at the network interface device (“NID”)  40  connecting the customer premises  20  to the public switched telephone network (“PSTN”). Typically, the NID  40  provides a common wiring point for the customer premises and the telephone service provider to connect and interface their equipment. The NID  40  serves as a convenient place to connect the local loop  22  to the customer premises  20  and demarcates customer premises equipment from telephone service provider equipment. In the preferred embodiment, on the customer premises side of the NID  40 , a POTS splitter  42  is installed to separate high-speed data signals from lower speed POTS signals. Preferably, the POTS splitter  42  separates high-speed ADSL signals from lower speed POTS signals. The POTS splitter  42  has an input/output  44  from the local loop  22 . The splitter  42  separates the high-speed data and the lower speed POTS signals into two separate outputs/inputs  46 ,  48  for distribution within the customer premises  20 . One of the outputs/inputs  48  supplies high-speed data traffic and the other output/input  46  supplies POTS voice frequency signals. From the POTS splitter  44 , the POTS voice frequency signals  46  are connected to the wireless distribution system  50  while high-speed data is connected to the wireline distribution network  60 . Alternatively, the POTS splitter  42  may be provided internally within the NID  40 . 
     Now referring to  FIG. 4 , the operation of a POTS splitter  42  separating voice frequency signals from the data signals is described. Combined POTS and high-speed data signals carried by the local loop  22  to the customer premises are terminated at the input/output  44  of the POTS splitter  42  with a 600-800 ohm impedance. In the present embodiment, the POTS splitter  42  includes a high-pass filter  45  and a low-pass filter  43  to separate the different frequency signals. The high-pass filter  45  separates the high-speed data  48  to splitter output/input  48  and the low-pass filter  43  separates the lower speed POTS signals to output/input  46 . To separate high-speed data, the high-pass filter  45  attenuates lower frequency signals and passes only higher frequency signals. The high-speed data signals are typically at higher signal frequencies, such as above 80 KHz. Thus, the high-pass filter  45  outputs only these high-speed data signals to output/input  48 . To separate POTS voice signals, the low-pass filter  43  blocks high frequency signals, for example, signals above 10 KHz, passing only lower frequency voice band signals in the 200 Hz to 4 KHz range to the output/input  46 . Thus, the high-pass  45  and low-pass  43  filters have separate outputs with the low-pass filter outputting POTS signals  46  and the high-pass filter outputting high-speed data traffic  48 . It is to be understood that the POTS splitter  42  also operates in the reverse “upstream” direction to combine high-speed data  48  and lower speed signals  46  from the customer premises for transmission to the telephone service provider&#39;s central office  24 . High-speed data destined for the central office  24  is input to the splitter  42  at output/input  48  and the lower speed data is input to the splitter at output/input  46 . The high-speed data and the lower speed POTS signals are combined at input/output  44  for transmission to the central office  24 . POTS splitters are available from suppliers of DSL telephone equipment such as NetSpeed of Austin, Tex. 
     The described embodiment of the POTS splitter is representative, and there are numerous other embodiments in accordance with the present invention. The described embodiment of the POTS splitter may be suitable for any of the local loop systems described in connection with  FIG. 1  which combine high-speed and lower speed signals on the same local loop at different frequencies. The POTS splitter may also be implemented according to the requirements of the local loop. For example, a local loop that carries high-speed data and lower speed voice band frequencies on separate lines to the customer premises may eliminate the need for the POTS splitter altogether. Because the high-speed and lower speed signals are already carried on separate lines, there is no need for a POTS splitter to separate the signals onto separate lines. The high-speed data line can be directly fed to the wireline distribution network  60  and the lower speed signals can be directly fed to the wireless distribution system  50 . 
     Referring again to  FIG. 3 , a diagram of the wireless distribution system  50  carrying POTS and lower speed data within the customer premises  20  is represented schematically. To provide access to the wireless distribution system  50 , the low-pass output/input  46  of the POTS splitter  42  is connected to a wireless controller  52 . The wireless controller  52  transmits the lower speed signal output of the POTS splitter  42  to the various remote receivers  54 ,  55 ,  56 ,  57 ,  58 ,  59  in the range of wireless distribution network  50 . Preferably, the wireless controller  52  is located near the POTS splitter  42  to receive the lower speed data or POTS voice signals from the low-pass output/input  46  of the splitter. The wireless system  50  preferably carries voice telephone signals associated with POTS, but may also carry lower speed data such as that associated with a modem or other relatively low baud rate data systems. For example, an output  80  of the ADSL modem  62  may be supplied to the wireless controller  52  of the wireless distribution system  50 . The wireless controller  52  may have a low-speed data input  51  that can receive a connection  80  from the wireline distribution system  60  using a conventional RJ-11 telephone jack. The wireless distribution system  50  can thus distribute a lower speed data channel from the wireline distribution system over one of its wireless channels. For example, the wireless controller  52  may provide a multiple number of 64 Kbs to 128 Kbs data channels. The wireless channels may carry a number of POTS lines but may also be used to carry a lower speed data channel from the ADSL modem  62 . Thus, lower speed data from the ADSL modem  62  is also available for use by devices on the wireless distribution system  50 . 
     The wireless controller  52  has a radio frequency (“RF”) interface to communicate with the various remote receivers using a small antenna  53 . The antenna  53  may be driven by a low power transmitter broadcasting with less than a 0.1 watt of power to provide wireless service with a range from a few feet to a few hundred feet of the wireless controller  52 . Of course, higher power wireless distribution systems may transmit with greater power to provide greater usable range. The wireless controller  52  may use the household alternating current (“AC”) electrical wiring (not shown) as a transmitting antenna. Such systems may use a capacitor to block the AC line current while passing a frequency modulated carrier with a center frequency ranging from 1.6 to 1.8 MHz through its AC power cord to the household electrical wiring. Smaller whip antennas (less than one meter in length) can also be used in accordance with this exemplary embodiment. The various remote receivers  54 ,  55 ,  56 ,  57 ,  58 ,  59  in the wireless distribution network  50  may also use similar whip antennas to transmit with low power. 
     The wireless distribution system  50  can take many different forms and have different RF interfaces as compatible with regulatory agencies as the Federal Communications Committee (“FCC”) and applicable industry standard protocols. For example, a simple consumer cordless telephone system that provides a base unit transmitting and receiving at the 45 to 50 MHz frequency range to receivers such as a cordless, battery-powered telephone handset  54  can be used. Such cordless telephone systems provide full-duplex operation between the base station  45  and the handset  54  by transmitting at one frequency and receiving at second frequency. A typical cordless telephone system transmits signals at about a 46 MHz frequency and receives signals at around 49 MHz. Half-duplex wireless systems transmitting over a single frequency are less desirable for voice operation. In these wireless systems, the signals are typically analog signals modulated using amplitude modulation or frequency modulation techniques. Often a number of different channels at different frequencies in the 45 to 50 MHz range are made available for multiple channel capability for operation under noisy electrical conditions. 
     Most preferably, the wireless distribution system operates in the higher 800 to 900 MHz frequency band now being used in a variety of consumer wireless applications such as the latest generation of wireless telephones, pagers, and the like. The preferred system is a digital communication system having multiple channel capacity to provide a plurality of POTS lines and lower speed data channel(s), Multi-channel digital wireless systems using time-division multiple access (“TDMA”), frequency-division multiple access (“FDMA”) and spread spectrum techniques such as code division multiple access (“CDMA”) feature provide greater bandwidth capacity and may be less prone to interference in electrically noisy environments such as the typical business office. The remote receiver may be a wireless handset or a fixed-wireless telephone station  55 , similar to a conventional style telephone, except using an antenna and transceiver rather than a wireline to receive signals. The fixed-wireless telephone station may use battery or AC power and provide the telephony functions of receiving, transmitting; DTMF generation/detection, on and off-hook detection and voice coding. Of course, all the features of conventional telephones such as wireless paging, intercom, speakerphone, security codes, volume controls, and the like may be incorporated. The wireless system may also have wireless headsets  56 , wireless modems  57 , or other home devices that are connected to receive lower data rate information, such as an alarm system  58 . 
     In another example, a kitchen counter display device  59  with a liquid crystal display may use a channel of the wireless distribution system  50  to access a recipe page on the Internet via a modern connection. To find a recipe, a user may use the kitchen display device  59  to connect to a host computer containing recipes, such as a web page on the Internet, using a lower speed data connection over the wireless distribution system  50 . Preferably, the wireless distribution system  50  provides a lower speed data connection that uses a lower speed data connection from the ADSL modem  62 . A data connection on the ADSL modem  62  has the advantage over a conventional telephone modem in that the ADSL modem  62  always has a data connection without having to establish a new connection, i.e., a telephone call and connection does not have to be established for each call. Thus, a considerable amount of call setup time can be saved to allow quick access to information. It should be understood, of course, that a conventional facsimile, computer modems, wireless modems, paging systems, alarm systems and other lower speed data systems may also utilize the wireless distribution system. 
     Other wireless communication systems or mobile telephones operating at higher frequency ranges, such as the 1.5 GHz frequency range used by personal communication systems (“PCS”), are also suitable for the wireless distribution system in accordance with the present invention. A personal communication network (“PCN”) may also implement a wireless telephone system from the telephone service provider central office that bypasses the local loop. PCN uses light, inexpensive handheld handsets and communicates via lower power antennas than cellular telephone systems, therefore having longer battery life. PCN systems typically operate in the 1850 MHz to 1990 MHz frequency range. The PCN implementation of the wireless distribution system simplifies the embodiment of the invention. Using the PCN system, voice telephony is carried from the telephone service provider&#39;s central office on a wireless distribution system, however, high-speed data traffic may still be carried from the telephone service provider on a DSL local loop. Because PCN carries the lower speed voice data separately from the high-speed data, the need for a POTS splitter may be eliminated. The high-speed data carried by the local loop from the telephone service provider central office is sent directly to the customer premises wiring for distribution on the wireline network. PSC and PCN systems may also provide a wireless private branch telephone exchange (“WPBX”) providing telephony functions within or in close proximity to a customer premises location. 
     It should be understood that unlike typical home cordless telephone systems, which are used in conjunction with a standard telephone connected to the in-house telephone wiring, the present embodiment does not require use of the in-house wiring. The wireless controller  52  can be directly connected to the POTS splitter  42  and the lower speed data transmitted without being carried by the existing wireline system. 
     As described above, conventional POTS signals are separated by the POTS splitter  42  to be distributed on a wireless network  50  without using the existing telephone wiring. The existing telephone wiring  61  can thus be used to carry high-speed data. To implement the wireline distribution system  60 , the high-speed data output/input  48  of the POTS splitter  42  is connected to the existing telephone wiring  61 . For example, the tip and ring pair of the conventional telephone wiring  61  is used to distribute high-speed computer data such video, multimedia audio, graphics and text or computer data associated with a local area network. Once connected to the existing telephone wiring  61 , the high-speed signal is available throughout the customer premises  20 , wherever the telephone cabling  61  runs. Typically 4 wire or “quad” telephone cable is used for the telephone wiring in most homes. Preferably, the telephone wiring  61  is twisted pair 22 gauge copper wire, however, 18, 19, 24 or 26 gauge copper wire is also suitable for customer premises wiring. If necessary, a line boost amplifier  68  can also be used to amplify the signal for longer cable runs. It should also be understood that other types of shielded cable or coaxial cable are also suitable for the wireline system. 
     Still referring to  FIG. 3 , the wireline system  60  uses the existing telephone wiring  61  in the subscriber home, business or small office to distribute high-speed data throughout the customer premises  20 . In one embodiment, the high-speed data output/input  48  of the POTS splitter is connected to the wireline distribution network via an ASDL modem to demodulate and decode the ADSL local loop. The ADSL modem  62  can also be provided on a network interface card (“NIC”)  82  as a component of a personal computer  84 . The personal computer  82  can then terminate the ADSL line and be used as a high-speed data connection in any room of the house where the wireline distribution system  60  is available. Alternatively, the ADSL modem  62  may also be a standalone device providing outputs connected to other computer devices or a network switch, router  63 , or network server  64  providing access to local area network of computers  65 , peripherals, or video display devices  69 . The ADSL modem  62  may have a number of different outputs, such as an output  80  connected to the wireless controller  52 . It should be understood that the video display device  69  may require an appropriate interface device to the ADSL modem, typically in the form of a set-top box. 
     Using the existing wireline  61 , high-speed digital data services can be delivered to multiple access points  66  throughout the home  20  for a laptop computer  67  or other customer applications. Most new and existing buildings presently have either 2 wire or 4 wire telephone cabling to each area of the building. The wiring is typically terminated to a modular RJ-11 type jack in each room of the building where access to telephone service was provided. The computer devices  65  preferably interface the wirelines using a NIC of the appropriate network protocol type for accessing the incoming data. For example, if the data carried on the wireline  61  implements the Ethernet protocol the NIC implements an Ethernet Interface. If the data carried on the wireline distribution network uses the asynchronous transfer mode (“ATM”) protocol, the NIC implements an ATM interface. The conventional RJ-11 jacks can be adapted to an appropriate network interface jack for computer network devices and NICs. 
     Referring now to  FIG. 5 , in another aspect of the present invention a means for providing POTS telephone service during a power outage is described. The wireless controller  52  operates on AC power supplied by the local power company. During an AC power outage, power to the wireless controller  52  is lost, rendering the wireless distribution system  50  inoperable. Thus, POTS over the wireless distribution system  50  is lost during a power outage. The telephone service provider central office, however, typically has its own uninterruptible power source such as the central office batteries that supplies power for POTS during power outages. In the present embodiment, a switch  70  is provided to make POTS available over the wireline distribution system  60  during power outages. For example, switch  70  is connected between the input of the wireless distribution system  50  and the wireline distribution network  60 . The switch  70  is also plugged into the conventional 120 volt AC power supply line  72  to detect the presence or absence of AC power. Under normal operating conditions, when AC power is available, the switch  70  is normally open and has no effect on the operation of the system. When the switch  70  detects the loss of AC power  72 , the switch closes, channeling POTS from the input of the wireless distribution network  50  to the wireline distribution network  60 . Thus, POTS is available on the wireline distribution network when AC power is lost. Conventional combinational logic, well known to those skilled in the art, may be used to detect the loss of power and control the operation of the switch  70 . When power  72  is restored, the switch is programmed to open again. As readily apparent, other systems of maintaining power during power outages such as an uninterruptible power supply may also be utilized. 
     The present embodiment of the invention uses the POTS splitter to separate high-speed data, such as computer data, from lower speed signals, including telephony voice signals. The lower speed signals are directed to a wireless distribution system to transmit the lower speed signals to various devices throughout the customer premises using radio frequencies. The higher-speed data is directed to the wireline distribution network for distribution throughout the customer premises on the telephone wiring ordinarily used to carry voice telephony. Using the present embodiment allows separate voice and data line to be supplied to customers without the cost and disruption of installing additional cable facilities. The wireless system is used for distributing lower speed POTS signals, reducing the complexity and cost of the wireless system. The wireline system, which ordinarily has higher bandwidth, is used for distributing high-speed data. 
     The present disclosure has many different uses and applications. For example, the present disclosure may be used in conjunction with the derived digital telephone line service (“Powerline Phone”) discussed in application Ser. No. 09/533,263 by W. Walkoe and J. Barber, which is assigned to the assignee of this present application and hereby incorporated by reference. Derived digital telephone line service recognizes the desirability of providing a plurality of POTS lines along with a DSL service, such as ADSL, to the customer premises. A conventional analog POTS line and ADSL service is ordinarily provided to the customer premises. To provide additional POTS lines, an ADSL channel is used to implement digital POTS lines carrying POTS voice traffic. The digital POTS lines are similar to conventional POTS lines except that they are implemented and carried over the ADSL. In conjunction with the present disclosure, the wireless distribution system may be used to carry the conventional POTS line for mobile network carries high-speed digital data traffic and the derived digital voice lines implemented over the ADSL. Additionally, the wireless distribution system may also carry a number of derived digital POTS lines over its plurality of wireless channels. Thus, the wireless/wireline distribution system may be used to carry a plurality of POTS lines along with a DSL service. 
     It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. Numerous modifications and variations are possible. It is intended that the foregoing detailed description be regarded as illustrative rather than limiting. It is the following claims, including all equivalents, which are intended to define the scope of this invention.