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See the extensive lists below for these categories:

COMMUNICATION COMPANIES
GLOBAL POSITIONING PRODUCT PROVIDERS
PHONE CARDS
VOICE OVER THE INTERNET (VOIP) PROVIDERS
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COMMUNICATION COMPANIES:

Airnex Communications - A global communications and information company with focus on the ethnic communities around the globe which offers long distance, cellular, paging, and internet services.

Aliant Inc. - Provides local and long distance telephone, wireless, and Internet services in Canada's four Atlantic provinces.

American Tele-Connect Services, Inc. - Support for business communications and data networking technologies.

American Telesis - Wholesale provider of private lines, dedicated internet and frame relay services to the resellers, agents and brokers.

Americanfone - Telecommunications reseller based in the United States.

Astound Communications - Offers cable TV, telephone, and high-speed internet access in the USA.

AT Communications - Efficient alternative to the small number of traditional telecommunications carriers in the UK, providing more for less through least cost routing.

Atlantic Telephone Membership Corporation - Providing telecommunication solutions for Brunswick County such as phone, cable, wireless, internet and paging.

Berk-Tel Communications, Inc. - Offers nationwide telecom and data solutions for small to medium size companies. Services include nationwide roll-outs, national MAC service, campus environments and single site projects.

Box Communications - Provides a mix of specialist products, professional services and consultancy offering your organization communications solutions to improve business efficiency and enhance existing products and services.

Choice One Communications Inc. - Provides broadband data and voice telecommunications services primarily to small and medium-sized businesses.

1 Com, Inc. - Local and long distance services, internal telephone systems, cellular phone service, voice mail and paging systems.

Comcast Business Communications - Fiber-based broadband communications provider of integrated Internet, data, voice products and services for small, medium and large multi-location regional businesses.

Communication Services Integrated - US provider selling multiple communication systems and providing installation and training including voice and data networks. Also supports messaging and cell phone.

CTI Telecom - Offers local and long distance phone service in Florida, Georgia, North Carolina, and Tennessee. Includes residential and business plan rates.

Echo Communications - Offering integrated voice and data solutions in the UK along with call management, integrated billing, and customer service.

Enhanced Communications Group - Telecommunications reseller offering residential and business services.

eTech - Full service Australian telecommunications provider.

Eureka Broadband - Provider of bandwidth-intensive network services and software applications.

Evans Companies - US based distributor of telecommunications products including NEC and AVT.

FairPoint Carrier Services - Carrier Services provides clients with end-to-end solutions in today's telecommunications market.

First Communications - Long distance service which offers a digital cellular, Internet, or frame relay.

Frontier - Telecommunications company provides local and long distance telephone services, paging, and Internet access in 24 states.

Fujitsu Telecommunications Europe Limited - Global leadership in state-of-the-art telecommunications technologies. A European focus, delivering market-leading end-to-end solutions.

General Communications Incorporated - Provides residential and business telecommunications services to residents of Alaska. NYSE:GCI

Global Dialtone - Offers local and long distance telephone service, toll-free numbers, and Internet calling.

Global Internetworking - Provides complete end-to-end turnkey solutions to the most complex telecommunications systems in the industry.

Golden Voice - Provides voice mail services to small businesses and individuals nationwide and worldwide.

Grapevine Business Communications - Specialize in business telephone systems, mobile telephones and 2-way radios.

GTC Telecom - Residential and business long distance service that also offers e-cards and high speed dedicated access.

Heartland Telecom - Providing Sprint and ASC operator services for Independent Payphone Providers (IPP's).

Heritage Communications - International wholesale telecommunications carrier and developer of turnkey telephony platform offering billing, debit card, reporting, callback, and voice mail.

Hop On - Diversified telecommunication convergence company.

IDN, Ltd. - International long distance telecommunications provider offering callback, call through, satellite services, VoiP, VPN, switch hardware, and billing software for resellers.

INFONXX - Provides a suite of information services designed to grow revenue, differentiate brands, and retain customers.

Innosys Communications Inc. - Innosys is a facility-based telecom company, a next-generation carrier currently located in USA, Korea and Taiwan.

Intelecom Solutions - Integrated communications provider to businesses services including local, long distance, internet service, telephone and data equipment.

InteleCorp - Provider of wholesale and retail telecommunications services worldwide.

Intune - Flat rate calling plan and wireless provider.

Iowa Network Services - Made up of 150 locally owned independent companies providing fiber-optic technologies to Iowa communities.

ITL Metro - Competitive Local Exchange Carrier and full telecommunications service provider for ISPs and local businesses.

LCR Telecommunications - International whole sale long distance calling, with internet access and a telehub network service.

Lightpath - Offering advanced fiber optic network solutions for voice, data and business communications.

Linctel - UK provider of free phone, local rate and national rate services.

011 Long Distance - Offers flat rate international long distance service as well as dial-up internet and toll free billing.

Mahaganar Telephone Nigam Ltd. - Basic telephone, mobile telephone and Internet service provider and more for Delhi, Mumbai, New Mumbai and Thane.

Marconi - Marconi is a major international group focused on high growth communications and selective markets for high technology products.

Matrix Telecom - Full service telecom provider, 1+ long distance, local service, dedicated access, calling cards and toll free, site hosting, and e-commerce.

Mayfair Telecom PLC - Long distance and mobile communications services in UK.

M3Com - Offers fiber optic cable facilities with wholesale end-to-end provisioning for telecommunications companies.

MDTC McDonough Telephone Cooperative - The company serves rural west-central Illinois providing local, long distance and internet access.

Medlock Communications - Digital network communications that provides site acquisition and project management.

Melrose Telephone Company - Telecommunications provider in Central Minnesota. Serving the communities of Melrose, St. Martin, Grey Eagle, Kimball, Richmond, Greenwald, Watkins, and surrounding areas.

Mescalero Apache Telecom, Inc. - Local and long distance telecommunication services for Mescalero, NM and surrounding areas.

MetTel - Offers a full range of telephone services and voice and data products for residential markets and small to medium-sized businesses.

Midas communication - Telecommunication research and development company providing cost effective telecommunication solutions worldwide.

MLL Telecom Ltd - Telecommunications operator providing digital point to point bandwidth for the transmission of voice, data and video within the UK and Europe.

Modus Telecom - United Kingdom based long distance company providing switch partitioning, and corporate telecom solutions throughout Europe.

Momentum Technology, Inc. - Provides an inbound call management service.

Mpresence - Free WAP site fully operational within minutes. No IT knowledge required and online editor available.

Navigata - Provider of telecommunications services in British Columbia.

NCIC - NCIC provides international operator services to the Hospitality industry, hotels, CLECs, public payphone providers, hospitals and cellular service providers. Also provides collect calling services to USA and Canada.

Neoscorp Limited - Operate an ethernet communications network throughout the United Kingdom. Services include point to point ethernet transport and LAN extensions, and virtual private networks.

NetVenue Telecom - Domestic and international long distance services.

Network Digital - Business Communication needs for small to medium businesses.

Network Telephone Corporation - Southeast telecommunications company that offers local, long distance and high-speed internet services for small and mid-sized businesses.

NetworkTwo - Full-service data transmissions provider in developing and maintaining customer networks and fault-resistant network management solutions.

NewSouth Communications - Integrated communications provider providing businesses with high-speed Internet, data, local and long distance telephone services--on one bill

NexCom Communications - Authorized Nextel agent.

Optic Fusion, Inc. - Telecommunications company grade facilities to the world for local, national, and international customers in Tier 2 and 3 cities.

Pacific Lightnet,Inc. - An integrated communications provider offering integrated, local, long distance, data, video and Internet services in Hawaii.

Phone Bill Busters - Markets long distance and cellular services from telephone carriers. Also provides calling cards.

Pioneer Communications - Full service provider with offices throughout Kansas. Specials, phone, wireless, internet, and cable presented.

Powercom - Provides long distance and local services, internet access and web site hosting, voice mail, paging and calling cards in Wisconsin, Minnesota, Illinois and Iowa.

Prince Telecom - Specializes in installations of high speed data (cable and DSL modems), in-home networking, aerial and underground fiber and coaxial plant.

QuantumLink Communications - Provider focusing on the business market.

Radiant Telecom Inc. - Integrates banking, credit card processing, and telecommunication networks services.

Reignmaker Consortium - VOIP technology, high speed internet, IP video conferencing, telecommunications voice services, cabling and telecommunication infrastructure.

Royal Telephone Company - Serving Royal, Iowa since 1911 with telephone, cable television, and internet services.

RWR Telecom - Provider of business and residential long distance service, data, frame relay, T-1, internet access, web page design, and conference calling.

The 3S Team HotLine - A telephone messaging/broadcast service for Youth Sports Leagues to help streamline communication from a coach to members of their team.

ShoreLink Communications, Inc. - Reducing the cost of calling back and forth across the Chesapeake Bay and around the country.

Spantel Communications - Telecommunications company which offers residential and commercial rates to customers.

Stickdog Telecom Group - A telecommunications company providing local, long distance, DSL, dialup, and web hosting.

Summit Telecom - Provides worldwide audio conference calling services and complete teleconference services.

Supra Telecom - Provides wireline network, local, long distance and network access services for voice communications, digital and data services and advertising services.

Swiftcall - International telecoms company specializing in international calls.

Swiftnet - United Kingdom based telecom provider offering least call routing and messaging products.

Synergistic Communications - A full service local and long distance telecommunications provider, consulting agency and voice mail company.

Tata Telecom - Provider of Lucent Avaya hardware and software solutions for voice communication services.

TDS Metrocom - Provides local phone, data and Internet services to business and residential customers.

Telcan.net - Provider offering full spectrum of telecom services.

Telecom New Zealand Limited - Supplier of landline, mobile, fax and internet facilities. Technologies like ADSL, Jetstream, CDMA are all supported.

Telecomoffice - 1+ and international callback services.

Teledynamic - Computer telephony featuring compact and modular business telephone equipment including automatic call distribution, ip pbx, cinphony, nortel, meridian and nbx 100 phone systems

Telemonde Inc. - Carrier supplying fiber optic bandwidth and added value services to the global telecommunications industry. The Company owns capacity and rights over capacity on two transatlantic fiber optic cable systems.

TeloPhase Communications Networks - Not-for-profit helping small municipalities deploy community-run, revenue-generating, broadband networks.

TelSouth Communications - Provider of bundled telecommunications, providing voice and data services.

TierOne Telecommunications - Long distance telephone service, conference calling, broadcast fax, high speed internet, and small business telephone systems.

Total Call International - United States telecommunications provider.

Total Communications - Voice and data communications provider for the New England area.

Totaltel International - Integrated supplier of prepaid communications solutions.

Tristar Communications - Florida based full service telecommunications provider.

United Connect - International telecommunications provider based in the United Kingdom.

Universal Telecom - Offers unlimited pre-paid local telephone service including a full set of features and pre-paid long distance.

Universal Telecom - Telecommunications services to governments, businesses and residential customers.

USA Datanet - Telecommunications provider based in the United States.

USA Telephone - Residential and business telephone service for states along the Eastern Seaboard from Maine to Virginia.

USA WorldTel - International callback, phone cards, Internet telephony, FAX on demand, business e-mail and data circuits.

USAccess - USAccess is a wholesale distributor of voice, data and high speed Internet services. Products include long distance, ISDN PRI, T1, T3, DS3, OC3, DSL, ATM, and frame relay.

USACollect - Offers international collect calling for the hospitality industry.

USCom Telephone, Inc. - Full service telecommunications provider offering long distance, calling cards, and dedicated services.

VersaTel Telecom International N.V. - Provides high quality, competitively priced, international and increasingly national long distance telecommunication and Internet services in the Netherlands and Belgium. (Nasdaq: VRSA).

Wholesale Telecom Corporation - Dedicated to the wholesaling of voice and data transmission. The company has agreements with several International PTTs to be able to provide service. Services to and from the US.

WTC Communications - WTC Communications offers local phone service, Cable TV, Internet Access and Business Telecommunications services. WTC Communications has been serving Eastern Iowa for over 100 Years!

Xfone - United Kingdom based full service telecom services provider.

GLOBAL POSITIONING PRODUCT PROVIDERS:

Advanced GPS Store - Offers handheld Garmin, Magellan, and Palm systems, mapping software and accessories.

Affordable GPS Systems - Sells systems and mapping software for driving and outdoors uses.

AG GPS Equipment - Offers Trimble and Raven GPS equipment and GIS software.

Atomic GPS - Sells GARMIN, Magellan, NAVMAN, Cobra and Motorola FRS radios and TravRoute GPS navigation.

AutoNav 2000 Plus, Inc. - Sells automotive navigation and tracking systems. Includes pictures of installations and a FAQ.

Axonstore - Specialize in selling CoPilot consumer and trucking solutions for GPS routing and guidance products that work with laptops and PDA's.

Blue Hills Innovations - Specialty interface cables for connections between receivers and computers, handheld devices, or amateur radio equipment. Includes a tutorial about the equipment.

Buy Magellan - Sells Magellan GPS receivers and accessories.

Car Navigation Systems - Specializing in Alpine car navigation systems. Includes excerpts from product reviews.

Clayton Communications - Offers GPS personal locators and vehicle and fleet tracking systems.

Consipio - Offers specialized Point Of Interest (POI) databases for navigation purposes.

CRICEL - Sells PDA accessories, GPS, camera, flash card and microdrive.

Deluo - Sells GPS receivers and accessories for laptops and PDAs.

E-Buy Connection - Offers Garmin GPS systems, fishfinders, sounders, handheld and automotive global positioning units.

Everything-Mobile - Sells handheld GPS products and accessories, PDAs and PDA-based GPS, GPS software, maps, videos and books.

FindCall - Sells GSM mobile phone location and tracking and Wayfinder is a mobile phone based GPS navigation system.

Gismap GPS Shop - Sells GPS, handheld and mobile vehicle navigation systems. Based in South Africa.

123 GPS - Retails Magellan and Garmin receivers in hand held and marine units, including accessories and mapping software.

GPS - Receivers from Magellan and Garmin.

GPS City - Offers land and marine Garmin products, receivers, accessories, and mapping software.

GPS Explorer - Dealer of Garmin, Magellan and Lowrance. Sells GPS models for cars, boats and outdoor use.

GPS For YOU - Sells GPS handheld, marine and vehicle units and accessories from Garmin, Magellan and Navman. Mapping software is available.

GPS Kit - Offers GPS tracking systems and accessories such as Tomtom, Garmin and Magellan IPAQ.

GPS Mountain - Retailer of global positioning systems and marine electronics.

The GPS Place - Sells GPS systems; handhelds, automotive navigators, 2-way radio GPS, PDA's with GPS, wearable GPS, accessories and software.

GPS Products - Sells and reviews of GPS software, systems, and maps for portable handhelds, PDA's, cars, receivers, laptops, and marine units.

GPS Source - Offers Travroute, Garmin, Magellan and Lowrance products. Also sells accessories and communications devices.

GPS Vehicle Navigation in Australia - Sells and support information for the book "GPS Vehicle Navigation in Australia". Provides GPS information not specific to the book.

GPS Zone - Sells Garmin, Magellan, and Lowrance units. Also offers fish finders, software, and accessories.

GPSdeal.com - Garmin retailer. Also sells chartplotters, fish finders, and accessories.

GPSMarketPlace.com - Sells handheld and marine systems. Also offers fish finders, communication units, and accessories.

Gps-Store.net - Sells a wide range of brands of handheld, automotive, and marine units. Also sells chartplotters and fish finders.

GPSVHF.com - Sells car, boat and PDA GPS hardware and software such as Garmin, Magellan and Navman.

GPSX - UK-based retailer of portable systems and accessories.

HandNav Technology Ltd. - UK reseller specializing in GPS map software and mobile navigation hardware for Pocket PC and Palm OS handheld PDA.

Keely Enterprises LLC - Offering GPS vehicle tracking and security products.

Mall 24-7 - Sells outdoor gear, GPS and marine electronics.

Memory-Map - Sells hardware, mapping software, and accessories. Also offers map and navigation software for PC and Pocket PC computers.

MobileMapper - Sells MobileMapper from Thales Navigation that combines GIS data collection and navigation software handheld GPS receiver.

Moose Trax - Sells cigarette lighter adapter to power Garmin Rino GPS for vehicle.

Navcity - UK-based retailer selling several brands of receivers, accessories, and mapping software.

Nav-e-gate4less - Offers Garmin GPS Systems, along with digital mapping systems and other navigational aids.

NavGator - Provider of integrated custom electronic marine command and control systems. Also offering GPS navigation and charting software.

Navigation Aids - Sells Garmin and Magellan GPS navigation units, equipment and accessories. Delivery across the UK and Europe.

41 North - Sells navigation and marine supplies such as hand held GPS and console GPS.

PCMCIAGPS.com - Offers PCMCIA GPS cards and an optional external antenna for laptop.

Positioning Solutions - Sells GPS navigation hardware/software bundles for most types of PDAs. Provides Palm OS and Pocket PC bundles.

ProSource GPS - Offers marine and handheld GPS receivers, topographical mapping software, and accessories from manufactures such as Garmin, Lowrance, Humminbird, Magellan and Eagle.

Raco Industries: GPS Solutions - Offering vehicle tracking and location services as well as devices for laptop and handheld computers.

Road Mate - Sells GPS satellite navigation system.

Routeplanners - UK-based retailer of personal navigation products and mapping software from a range of manufacturers.

satnav.co.uk - Specializing in portable GPS and satellite navigation systems for car, marine and outdoor activities.

Tiger GPS - Offers Garmin and Magellan and accessories such as mounting bracket.

Tiger GPS SuperStore - GPS navigation distributor for Garmin and Magellan electronics.

The Unique-Solution - Marine and consumer electronics for outdoors such as from GPS units, fish finders, sounders, 2-way Radio's, AM/FM receivers, sonar, RADAR systems and digital cameras.

You-Track.com - Sells direct track GPS for vehicle.

Zollinger Enterprises - Sells handheld and fixed mount GPS units.  

PHONE CARDS:

American Freedom Central - Offering prepaid phone cards, dial tone and cellular services.

Arrell Communications - Offering a variety of prepaid phonecards with a 10% discount.

Atlantic Phone Cards - Prepaid phonecards for domestic and international calling with online email delivery.

BAB Communications, Inc. - Pre-paid and custom phone cards with various domestic and international rates.

Best Telecom - International and domestic calling cards.

CallDepot - Provides dial-around and pre-paid calling cards. Includes rate calculator.

Cheers International - Provides phonecards for international and domestic phone calls.

CTW Prepaid - Offers long distance and cellular prepaid phone cards with many choices of rates, plans, services. A complete billing service enables more time for sales.

Dial Around the World - Prepaid phone cards for all of your long distance calling, domestic and international.

Dialmycall.com, Inc. - International and long distance prepaid phone card service provider.

Domesticall - Five different long distance phonecards to choose from.

e4tel Networks - Offering USA and Canadian phone cards. Located in Canada.

Eurotelsat Callback Telecommunications - Calling cards services.

Gamut Enterprises - Wide range of prepaid phonecards domestic and international.

Go Prepaid - Canadian distribution of prepaid long distance, wireless and internet products. Private branded programs for custom applications and vending machine programs also available.

GoodPhoneCards.com - Discounted brand name prepaid phone cards.

Hello Howzit - Call from the USA and Australia for international phone calls. Online sign-up.

77 INVESTIGATIONS Inc. - Phone number trace calling card.

Jude Innovations - Prepaid calling cards for domestic and international calling.

Just Phone Cards - Offers prepaid phone cards for domestic and international long distance to places in North America, Asia, Africa, and Australia.

Kidsconnect - Offers parents prepaid phone cards with stored phone numbers for kids, providing easy calling for increased child safety and comfort.

LeanCard.com - Pre-paid phonecards store. Orders accepted on-line, by mail or fax.

Lowest Prepaid, Inc. - Domestic and international destination phonecards.

Magellex Communications - International and domestic rates.

Millennium Telecard - Wholesale local and international phone card distributor. Online order form. Includes wholesale ordering information.

NextPhoneCard.com - Includes phone card comparison chart and upfront fees and other pricing information.

Nurtel - Provides service to the Middle East and South East Asia with phone cards and long distance service.

Onesuite - Pre-paid card service provider located in Los Angeles, California.

Opal Manufacturing Ltd. - Canadian based phonecard vending machine provider. Site provides photos of different models.

Paytel Australia Pty Ltd. - Releases standard, collectors and special purpose phonecards.

PhoneCardSavers - Domestic and international prepaid phonecards for long distance calling in the United States and worldwide.

Phonecards-Canada.com - Calling cards from Canada.

Phonecard-Services Ltd. - Offers cheap international telephone calls, including internet telephony. Details of products and services, including testimonials and FAQ.

Phonetime Inc. - Canadian wholesale provider of prepaid phonecards.

Pincity.com - Rechargeable calling cards for domestic U.S., plus rates for international.

P.P.P. Communications - Offers domestic and international cards. Bilingual 800#'s and customer service.

PrepaidOnline.com - Portal for prepaid products including phone cards, gift cards and business opportunity.

Prepaid-Solutions.net - A distributor of prepaid long distance cards, cellular phones, paging, and home phone service.

Rahim Card Service - Call anywhere in USA and Internationally.

Reliable Communications - Prepaid phone cards for calling within USA and to international destinations.

RSL COM Canada Inc. - Prepaid phone cards.

Sea-Com - Offers domestic and International phone card products.

SpeedyPin - Offers prepaid and international phone cards for personal use and for those interested in becoming affiliates. PIN numbers delivered instantly via e-mail.

StartDialing.com - Offering international prepaid phone calling cards.

Super Bell Communications - Pre-paid international and virtual calling cards.

TalkHome Distribution - Wholesaler of connect fee and no connect fee products which offers products listing and discount structure.

Tel3 Communications - Supplier of phone cards.

TWC Prepaid - Offers prepaid domestic and international phone cards from GE and Network Communications.

Universal Card Service - Prepaid phone card distributor that offers low rates and high discount rates to customers.

US Fibercom - Distributor of long distance, domestic, and international phone cards.

U.S. South Communications - One of America's largest privately-held suppliers of pre-paid phone cards.

ValuCom Online - Source for international and domestic communications.

WorldQuest Networks, Inc. - Provides long distance calling services routed over the Internet and distributes pre-paid calling cards. (Nasdaq: WQNI).

ZapTel.com - Select your virtual prepaid calling cards for long distance and international calls.

VOICE OVER the INTERNET (VoIP)

Asterisk - An open source telephony switching and private branch exchange service. Allows peer-peer calling using a variety of voice over internet protocols.

Call USB - Membership service enables customers to make free calls via internet using their supplied USB phone, which is charged monthly.

Calleveryone.com - A full featured VoIP/broadband phone to phone service primarily for calls within the US.

Callserve - PC-to-Phone service for outbound calls only. Software download required.

Dial2Home - VoIP service for phone-to-phone with adapter or peer-to-peer.

Dialpad Communications, Inc. - Offers monthly billing and pre-paid PC-to-Phone VoIP services. Also supports broadband telephone adapter for use without PC.

Dow Networks - Provides Voice over IP and telecom service to international clients.

Efonica - Prepaid system for PC-to-phone and web initiated phone-to-phone using VoIP.

Free World Dialup - Community network allowing calls to toll free numbers in the US, Japan, UK and Netherlands. Peer-peer calling to other members.

iConnectHere - Offers VoIP-based PC-to-Phone, Broadband Phone and Calling Card services.

ISPhone Inc. - Wholesale voice over internet services.

MeaPhone - PC to phone service based in Thailand. Software download required.

Mywebcalls - PC-Phone or device-to-phone United Kingdom based service.

One Unified Net - A communications infrastructure provider includes IP systems, services, softswitches, and phones.

Packet8 - Voice over internet direct dial service without a PC. Owned by 8X8, Inc.

PC2call - PC-phone internet voice service provider based in the United Kingdom.

RhinoBell - PC to phone, phone to phone using device, voice over internet calls.

RNI Communications Corp. - Converged voice and data service using VoIP with adapter to enterprise and business customers.

SIPphone Inc. - Peer-peer calling service. Requires SIP adaptor and phone.

Skype - Peer to peer internet voice service. Requires PC for both callers.

Talafone - Canadian based provider of PC-to-phone and IP phone services and hardware.

Vinculum Communications - VoIP wholesale international termination services provider.

Vodawave - Residential and enterprise VoIP plans plus gateways, gatekeeper and billing software.

VoicePulse - VoIP service offering phone-to-phone with device. Various features and calling plans.

VoIP Providers List - Information exchange for VoIP partners offering minutes termination and origination, as well as hardware and software trade.

VoIPOnline - Voice-over-IP news, supplier directory and chatrooms for discussing related industry topics.

VoipXchange - B2B VoIP exchange platform for carriers to buy/sell excess capacity on VoIP networks covering call termination in 250+ countries. No-fee membership required.

Vonage - Provides voice over internet local dial-tone service. No PC required.