• Broadband.com
• BroadVoice
• Callcentric: international phone number voip
• iConnectHere - the retail division of Deltathree. Options: Broadband Phone - low cost calling to USA & Canada, calling plans start from $15.99, free Broadband Adapter and free 1st month for 1yr contract; Make PC to phone calls - low rates and per-minute or monthly calling plans.
• Lingo - Customers making frequent calls within US, Canada or Eastern Europe get an attractive deal from lingo service provider. A home plan for $ 21.95 a month is offered by Lingo for unlimited calls in the USA, Canada and 17 other Western European countries. The Lingo VoIP has as many as 26 standard calling features including Voicemail, Caller ID, Call Forwarding, Call Transfer, and 3 Way Calling etc.
• Packet8 - Packet8 offers only one residential VoIP long distance calling plan and which is unlimited. The cost of the plan is $19.95 and allows unlimited free calls in US and Canada. Packet8 also offers unlimited calling plans to both Asia and Europe. There are several business plans offered by Packet 8 at very competitive prices. The standard features offered by Packet 8 include Voicemail, Caller ID, Call Forwarding, Call Transfer, 3 Way Calling, Call Waiting, Speed Dialing.
• Vonage - Vonage with a motto of "Voice over net age" is a VoIP network company providing telephone services via a broadband. The company is leading the Internet phone revolution with the huge subscribers' database of more than 1.5 million lines all over United States, Canada, U.K and other countries.
• Broadvox
• Encompass - Encompass is a vendor service including local and long distance voice; business IP telephony via hosted IP PBX; unified messaging (single inbox for voicemail, email and fax); call center features; dedicated internet access; 24x7 support and much more.
• FriendliCall - FriendliCall is a total Business Solutions IP enabler, providing an array of superior Business-Class IP services, ranging from ultra high-speed data to complete Hosted IP PBX VoIP offerings.
• Intelecom Solutions - Intelecom Solutions Inc. is a USA based company formed in 1996 and provides telecommunications and data solutions. The platform operates both on a private data network and the public internet. Intelecom can also transport on any access including T-1, DSL, Fiber, Wireless, ATM, Cable, and Frame Relay.
• Junction Networks - Junction Networks provides VOIP calling services for business. Offering inbound and outbound calling plans, Junction Networks is the source for SIP or IAX termination, origination and inbound 800 service, DIDs, BYOD.
• Namada - US and international telecommunications, toll free numbers worldwide, international conference calling, and general telecom and technology sales.
• Speakeasy - Speakeasy Business VoIP is a Hosted PBX solution. They are combined broadband connectivity, local and long distance phone service, PBX functionality, and conferencing to deliver a complete communications package that saves time and money while helping you compete like never before.
• Voxeo - Voxeo's BusinessVOIP services are flexible, redundant, mission-critical, carrier-class VOIP services based entirely on the open SIP VOIP standard. Voxeo BusinessVOIP services can be used to deliver calls both to and from from US local, international, US toll-free, and international toll-free phone numbers.
• XO
• MERA Systems - MERA Systems is a manufacturer of forefront carrier-grade VoIP solutions and information security systems. All our products and solutions have been designed in close cooperation with our customers, and are tailored to meet their needs, providing an efficient response to their business challenges.
• PortaOne - global communications infrastructure vendor. PortaOne enables Internet telephony service providers (ITSPs) and voice network operators to quickly and efficiently implement, manage and deliver a wide range of solutions for their services. PortaOne flagship product PortaSwitch/Billing is a carrier grade application for pre-paid, post-paid and wholesale VoIP services.
• Snom Technology - provides products in the area of Voice-over-IP, primarily on the basis of the open standards SIP.
• Sotel Systems - supplier of communications equipment new and refurbished, including Nortel, Avaya, Adtran, Siemens, NEC, Cisco; circuit cards to complete systems and more.
• Answering Service Call Center - Professional live operator 24 hour telephone answering service and advanced call center for large and small business.
• VoIP Reviews - Compare and Review Voice Over IP Service Providers.
• DSL Report - provides information and community on the subject of high-speed connections to home and office, voice over IP and other emerging communication technologies.
• VoIP connection test - VoIP Connection Test & Broadband Speed Test
• voip-info.org - VOIP Wiki - a reference guide to all things VOIP. This Wiki covers everything related to VOIP, software, hardware, service providers, reviews, configurations, standards, tips & tricks and everything else related to voice over IP networks, IP telephony and Internet Telephony.