Question: What is the county where MKC Networks is headquartered?

full_context: Document 1: MKC Networks: MKC Networks was a privately owned supplier of VoIP (Voice over IP) equipment and software components headquartered in Ottawa, Ontario, Canada. It designed and sold a family of SIP-based products including advanced SIP Enterprise Application Servers and scalable communication platforms.
Document 2: Ottawa, Kansas: Ottawa is a city in, and the county seat of, Franklin County, Kansas, United States. It is located on both banks of the Marais des Cygnes River near the center of Franklin County. As of the 2010 census, the city population was 12,649.
Document 3: S Voice: S Voice is an intelligent personal assistant and knowledge navigator which is only available as a built-in application for the Samsung Galaxy S III, S III Mini (including NFC Variant), S4, S4 Mini, S4 Active, S5, S5 Mini, S II Plus, Note II, Note 3, Note 4, Note 10.1, Note 8.0, Stellar, Mega, Grand, Avant, Core, Ace 3, Tab 3 7.0, Tab 3 8.0, Tab 3 10.1, Galaxy Camera, and other 2013 or later Samsung Android devices. The application uses a natural language user interface to answer questions, make recommendations, and perform actions by delegating requests to a set of Web services. It is based on the Vlingo personal assistant.
Document 4: Voipfone: Voipfone is a UK (London) based Internet Telephone Service (VoIP) provided by iNet Telecoms Ltd, which was founded in 2004 by Lee Rose. The company develops standards based, VoIP telephony services using Session Initiation Protocol (SIP). As of July 2014, the company has an annual turnover of over £4 million.
Document 5: Arlington, Illinois: Arlington is a village in Bureau County, Illinois, United States. The population was 193 at the 2010 census. It is part of the Ottawa–Streator Micropolitan Statistical Area, located east of the Quad Cities, north of Peoria and Galesburg, west of LaSalle and Peru, and southwest of Rockford and Chicago.
Document 6: Oklahoma: Two inland ports on rivers serve Oklahoma: the Port of Muskogee and the Tulsa Port of Catoosa. The only port handling international cargo in the state, the Tulsa Port of Catoosa is the most inland ocean-going port in the nation and ships over two million tons of cargo each year. Both ports are located on the McClellan-Kerr Arkansas River Navigation System, which connects barge traffic from Tulsa and Muskogee to the Mississippi River via the Verdigris and Arkansas rivers, contributing to one of the busiest waterways in the world.
Document 7: Shippingsport Bridge: Shippingsport Bridge has been the name of three similarly-located bridges over the Illinois River in LaSalle Township, LaSalle County, Illinois: an 1872 swing span bridge, a 1929 vertical-lift bridge nearby, and a 2003 bridge in the same location as the 1929 bridge. The third bridge still exists and carries Illinois Route 351 (IL 351).
Document 8: Nexcom Bulgaria: Nexcom Bulgaria, LLC is a licensed telecommunications operator, founded in 1998. The company is 100% owned by the US Nexcom Telecommunications, LLC, one of the first operators in the world, developing the Voice over Internet protocol technology (VoIP). Nexcom is the first operator in Bulgaria, providing products and services, based on the VoIP technology. Prior to selling its wholesale operations in 2003, Nexcom was the leading alternative telecommunications provider in 12 countries throughout Central and Eastern Europe. Nexcom designed, developed and operated the first pan-regional facilities based VoIP provider in the world. The company developed a seamless retail and corporate internet telephony solution more than five years before the launch of Skype.
Document 9: Ottawa: Ottawa (/ ˈɒtəwə / (listen), / - wɑː /; French pronunciation: ​ (ɔtawa)) is the capital city of Canada. It stands on the south bank of the Ottawa River in the eastern portion of southern Ontario. Ottawa borders Gatineau, Quebec; the two form the core of the Ottawa -- Gatineau census metropolitan area (CMA) and the National Capital Region (NCR). As of 2016, Ottawa had a city population of 934,243 and a metropolitan population of 1,323,783 making it the fourth - largest city and the fifth - largest CMA in Canada.
Document 10: Geography of Illinois: Illinois is in the midwestern United States. Surrounding states are Wisconsin to the north, Iowa and Missouri to the west, Kentucky to the south, and Indiana to the east. Illinois also borders Michigan, but only via a northeastern water boundary in Lake Michigan. Nearly the entire western boundary is the Mississippi River, except for a few areas where the river has changed course. Illinois' southeastern and southern boundary is along the Wabash River and the Ohio River. Whereas, its northern boundary and much of its eastern boundary are straight survey (longitudinal and latitudinal) lines. Illinois has a maximum north - south distance of 390 miles (630 km) and 210 miles (340 km) east - west. Its total area is 57,918 square miles (150,010 km).
Document 11: Ottawa, Illinois: Ottawa is a city located at the confluence of the navigable Illinois River and Fox River in LaSalle County, Illinois, United States. The Illinois River is a conduit for river barges and connects Lake Michigan at Chicago, to the Mississippi River, and North America's 25,000 mile river system. The population estimate was 18,562 as of 2013. It is the county seat of LaSalle County and it is part of the Ottawa-Peru, IL Micropolitan Statistical Area.
Document 12: Netopia: Netopia was a company headquartered in Emeryville, California that produced a variety of broadband products including modems, routers, gateways, and Wi-Fi devices. The company also produced the NBBS (Netopia Broadband Server Software), as well as the Timbuktu remote administration software. The company was founded in 1986 as Farallon Computing and changed its name to Netopia in 1998. Farallon Computing originated PhoneNet, which was an implementation of LocalTalk over plain telephone wiring. Netopia was acquired by Motorola in the first quarter of 2007.
Document 13: Rock River (Mississippi River tributary): The river begins with three separate branches which flow into the Horicon Marsh. The northermost branch, the West Branch, begins just to the west of the village of Brandon in Fond du Lac County, Wisconsin and flows east and then south to Horicon Marsh. The South Branch rises north of Fox Lake in Dodge County and flows east through Waupun to the marsh. The East Branch rises southeast of Allenton in Washington County just west of the Niagara Escarpment, and flows north and west through Theresa to the marsh. Leaving the marsh, it meanders southward to the Illinois border ending about 300 miles later at the Mississippi River at the Quad Cities in Illinois and Iowa. During its course it passes through Watertown, collects the Crawfish River in Jefferson, and receives the Bark River at Fort Atkinson. In northern Rock County it receives the Yahara River, and flows southward through Janesville and Beloit into northern Illinois, where it receives the Pecatonica River 5 miles (8 km) south of the state line.
Document 14: Skype for Business Server: Skype for Business Server (formerly Microsoft Office Communications Server and Microsoft Lync Server) is real-time communications server software that provides the infrastructure for enterprise instant messaging, presence, VoIP, ad hoc and structured conferences (audio, video and web conferencing) and PSTN connectivity through a third-party gateway or SIP trunk. These features are available within an organization, between organizations and with external users on the public internet or standard phones (on the PSTN as well as SIP trunking).
Document 15: IP Multimedia Subsystem: The IP Multimedia Subsystem or IP Multimedia Core Network Subsystem (IMS) is an architectural framework for delivering IP multimedia services. Historically, mobile phones have provided voice call services over a circuit - switched - style network, rather than strictly over an IP packet - switched network. Alternative methods of delivering voice (VoIP) or other multimedia services have become available on smartphones, but they have not become standardized across the industry. IMS is an architectural framework to provide such standardization.
ground_truth: LaSalle County
sub_queries: MKC Networks >> headquarters location Answer: Ottawa
Ottawa >> located in the administrative territorial entity Answer: LaSalle County