Internet Telephony (VoIP) Service Partners Internet Telephony Service Providers (ITSPs) allow companies to make phone calls over the Internet using VoIP (Voice over IP) technology. Telephones.com works with many different ITSPs. We conduct extensive interoperability testing with ITSPs to ensure that our customers get nothing but the best. SIP (Session Initiation Protocol) Trunking enables our internet telephony voip solutions, like Vertical's Xcelerator IP, Vertical Wave, Samsung Officeserv, Allworx, the Avaya One-X, and many others to make and receive phone calls without requiring costly voice circuits (conventional analog or PSTN media gateways). The result is a dramatic reduction in the cost of everyday business communications and the elimination of the capital and support costs associated with hardware media gateways. Telephones.com is pleased to certify the following growing list of Internet telephony service providers who offer SIP trunking services that interoperate with our VoIP small business phone systems. Telephone.cpm's SIP Certification means that Vertical's Xcelerator™ IP or Avaya's One-X Quick Edition users (and many others) can take full advantage of the economic benefits and user-friendliness of SIP with the assurance of excellent connectivity and quality of service. The connectivity and quality of service provided by these service providers support the telephone functionality of out VoIP small business phone systems. Not sure which SIP provider to go with? Improvements are constantly being made, so check with the service provider or call us for the latest compatibility information for the particular IP system you purchased from Telephones.com. Bluemile http://www.bluemile.net/ Bluemile is a Next Generation Network Provider with solutions in Voice over IP, Co-location, High Speed Internet Access, and Ethernet Transport. Our customers range from Small to Medium Businesses to some of the largest Telecommunications and Wireless providers in the world. Bluemile delivers its Voice over IP solutions with a patent pending massive switching infrastructure that allows for near instantaneous provisioning of service while providing the highest voice quality and completion rates in the industry. Leveraging the hundreds of millions of minutes terminated through Bluemile's network by large telecommunications customers, Bluemile is able to offer some of the lowest rates while keeping the quality and customer service the highest around. Quantumvoice http://www.quantumvoice.com/ Choosing a VoIP provider can be a gamble in today’s highly competitive marketplace, but it doesn't have to be! Quantumvoice has the knowledge and infrastructure necessary to deliver service today, and the longevity to be there in the (often “sobering”) morning. From SIP-based trunking to voice optimized broadband access, our services can easily meet the needs of the home or office, yet quickly scale to satisfy the demands of the most ambitious enterprise; all without being bogged by useless features that only look sexy on a marketing glossy. Simple Signal http://www.simplesignal.com/ SimpleSIP, from Simple Signal, allows you to converge all your voice and data between your office and the PSTN. SimpleSIP trunks simplify network management and optimize network expenditures. With SimpleSIP trunking, there are no limitations to the number of internal or partner communication connections. In other words, whether you are a small or large enterprise you can purchase SIP trunks for the number of concurrent calls your business supports, rather than buying each individual employee their own line. SimpleSIP provides you with a seamless integration of traditional circuit-switched interfaces and emerging IP-switched interfaces. This simple approach to integration enables your business to easily convert from traditional circuit-switched telephony legacy systems to next-generation IP systems. From a bottom-line standpoint, the value of SimpleSIP trunking is obvious. The most tangible benefit is lower Total Cost of Ownership savings, plus increased operational efficiencies that result from advanced IP calling features. Specifically, SIP trunking reduces the monthly recurring cost of separate PSTN and data circuits to the premise and to distant on-net users, suppliers and call center agents. With SimpleSIP, the number of TDM-T1 and PRI interfaces is reduced, as hundreds of VoIP calls can be processed with the same hardware footprint as a single T1 interface. In addition, SimpleSIP adds significant savings on long distance rates and local toll charges. SimpleSIP also brings a seamless connection between our backbone network and the SIP gateway. BandTel http://www.bandtel.com/ BandTel's VoIP telephony solutions are designed to deliver instant connection, superior call quality, enhanced features and continuation of service. BandTel provides a select suite of services not offered by any other VoIP. Our web-based call analysis portal is designed to give enterprise users access to real-time, in-depth reporting. Customers can easily create Call Detail Reports to analyze their telecommunications budget. It also allows them to access invoices, accounting history, calls by number/region/destination, and call completion ratios, so they can measure the effectiveness of the BandTel network. Resellers can also use TotalView to access their customers' call history and paid invoices; this provides them with an online compensation/revenue management system. Cbeyond http://www.cbeyond.net/ Cbeyond, Inc. (NASDAQ: CBEY) is a leading IP-based managed services provider that delivers integrated packages of communications and IT services to more than 29,000 small businesses in Atlanta, Chicago, Dallas, Denver, Detroit, Houston, Los Angeles and San Diego. Cbeyond offers more than 20 productivity-enhancing applications including local and long-distance voice, broadband Internet, mobile, BlackBerry(R), broadband laptop access, email, web hosting, fax-to-email, data backup, file-sharing and virtual private networking. Cbeyond manages these services over a private, 100-percent Voice over Internet Protocol (VoIP) facilities-based network. Cbeyond deployed its first SIP Trunking customer in January 2005 and led the defining of the SIPconnect industry specification via the SIP Forum. CommPartners http://www.commpartners.us/corp/index.php Think of us as the moving agents for IP technology. We help growing businesses make the move to the burgeoning present and prosperous future that is IP-based communications. Utilizing a nationwide, high performance IP network and an extensive CLEC (Competitive Local Exchange Carrier) footprint throughout the Continental US and Hawaii, CommPartners provides a robust menu of high quality VoIP and enhanced IP applications to the critically important and largely underserved small- to medium-sized business marketplace through a network of strategic partners and resellers. In addition, we also leverage our network facilities and nationwide coverage to provide carrier services to a growing list of domestic and International carriers which enables us to offer attractive pricing for all of our services.   IP1 http://www.ip1network.com/ IP1Network Corp. (“IP1”) is an integrated communications provider (ICP), rapidly deploying a converged IP environment by uniting the voice and data worlds into applications services. Strategic partnerships with partners and agents provide an unprecedented opportunity for IP1 to implement innovative technologies, including VoIP, SIP trunks, PinLess solutions and Long Distance services, both domestically and internationally. We offer a highly redundant and diverse network infrastructure, real time provisioning and real-time monitoring support systems and a fully integrated and customizable IP billing solution that offers our partners full end-user control, management and billing functions. Our customer driven IP communications services offers reduced costs solutions with unparalleled network reliability and leading edge IP communications products. IP1 is headquartered in Coral Gables Florida, with offices in: Colombia, Chile, Peru, Panama, Nicaragua, Honduras, and Mexico. Please allow us to assist you with your IP communications goals and vision by visiting us at http://www.ip1network.com/.