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  • Discover the advantages of a VOIP phone system / IP PBX
  • Download 3CX Phone System - FREE EDITION - a free IP PBX!
  • Download 3CX Phone System - FREE EDITION - a free IP PBX & SIP server!
  • Asterisk on Windows? 3CX Phone System!
  • Download 3CX Phone System for Windows - FREE edition
  • Download 3CX Phone System - FREE EDITION - a free IP PBX & SIP server!
  • Eliminate PBX headaches with 3CX IP Phone System!
  • Equip your Call Center with 3CX Phone System for Windows!
  • 3CX Phone System: the Trixbox alternative for Windows!
  • Business telephony is effectively improved with 3CX’s built-in IVR
  • 3CX IP PBX’s voicemail software – a comprehensive voicemail solution
  • Enhance your business communications with 3CX’s auto-attendant system
  • Unified Communications with 3CX Phone System
  • Connecting SIP trunks to 3CX Phone System (SIP Trunking)
  • 3CX SIP Server software  for Windows
  • 3CX Hotel IP Phone System / PBX with Micros Fidelio integration
  • VOIP reviews – 3CX Phone System in the Press
  • Streamline your company’s communications with a software-based IP telephone system
  • 3CX Small Business Phone System / Small Business PBX for Windows
  • Break free with a software-based office phone system for Windows
  • SIP PROXY
  • Use 3CX Phone System for Windows as a low cost fax server!
  • Using Microsoft Windows Fax with 3CX Phone System – the easy and economical way to send faxes!
  • 3CX IP PBX as a network fax server – the cost-effective alternative for businesses
  • Check extension & phone system status from anywhere in the network
  • Features: Enterprise version vs Free edition
  • Features: Free edition vs Commercial editions
  • Manage lines via the Line Management screen
  • Add a VOIP provider to use low cost internet telephony for particular calls
  • VOIP Client
  • Receive faxes directly in your Inbox
  • Use your Outlook/CRM contacts as your phone book and never dial a number again
  • Get support directly from 3CX’s specialized team
  • Configure extensions automatically
  • Connect remote branches easily
  • Use your computer as a phone and see the status of other users
  • Users can configure their own extensions without help from the IT department
  • Receive and make phone calls via PSTN lines using a VOIP Gateway
  • Manage extensions with a few mouse clicks
  • Adding an extension on the 3CX Phone System
  • 3CX Phone System Product Tour: IP PBX System overview
  • Configure 3CX phone system from anywhere in the network with a browser
  • Download 3CX Phone System for Windows
  • Thank you for submitting your request – 3CX Hardware & Software Bundles
  • 3CX Hardware & Software Bundles – The easy way to a complete phone system
  • 3CX Hardware Bundles – The Cost-Effective Way to Get a Complete Phone System for Windows
  • Download 3CX VOIP Phone System for Windows - Enterprise edition
  • Search results of 3CX Web site search
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  • Management
  • 3CX Events & Trainings
  • 3CX Events & Trainings
  • 3CX Worldwide
  • About 3CX
  • Contact 3CX
  • What is IVR / interactive voice response?
  • What is a voice mail system?
  • What is an auto-attendant?
  • What are IP Phones / IP Telephones?
  • What are SIP Phones?
  • Microsoft Response Point vs 3CX Phone System for Windows
  • VOIP FAQ & Info
  • 10 reasons to switch to an IP PBX
  • What is Unified Communications?
  • What is FOIP - Fax over IP?
  • What is T38?
  • What different types of CODECS are there?
  • How does FAX work in VOIP environments?
  • Example of SIP Call session between 2 phones
  • Can you list all known SIP responses?
  • What are SIP Methods / Requests and Responses?
  • What is a SIP-URI?
  • What SIP-based IP PBX's are available?
  • What is RTCP - Real Time Transport Protocol?
  • What is RTP - Real Time Transport Protocol?
  • What is ECHO cancellation?
  • What is H323?
  • What is SDP - Session Description Protocol?
  • What is Voice over IP?
  • What is SIP - Session Initiation Protocol?
  • What is a PBX Phone System?
  • What is a VoIP Telephone?
  • What is DID - Direct Inward Dialing?
  • What are the benefits of an IP PBX?
  • What is a good source of VOIP info?
  • What is a SIP server?
  • What is a STUN Server?
  • What does ENUM mean?
  • Check out these VOIP blogs and VOIP links
  • VOIP-defined
  • IP PBX: How an IP PBX / VOIP phone system works
  • What do the terms FXS and FXO mean?
  • VOIP gateway information - Learn about VOIP gateways
  • Sip phones / VOIP Phones types
  • SIP FAQ & INFO
  • IP PBX, SIP & VOIP FAQ
  • VOIP Definitions
  • What are the benefits of an IP PBX \ VOIP phonesystem?
  • 3CX VOIP client Build History / Change Log
  • 3CX VOIP Phone – a FREE VOIP softphone for Windows
  • 3CX VOIP Phone – a FREE softphone for Windows
  • 3CX SIP Phone Features
  • Download 3CX VOIP phone for Windows - the FREE VOIP Phone with a reputable name
  • ALLNET Becomes 3CX Phone System for Windows’ Distributor in Three Countries
  • 3CX and VoIPon Offer Enterprise Level IP Telephony Solution for Businesses
  • 3CX and snom Team Up to Deliver a Comprehensive VoIP Telephony Solution
  • 3CX Phone System v5.1 makes integration of remote workers and branch offices easy
  • 3CX and Patton Deliver Bundled VoIP and IP-PBX Solution with Deerfield.com
  • 3CX Receives INTERNET TELEPHONY® Magazine’s 10th Annual Product of the Year Award
  • Meet us at INTERNET TELEPHONY® Conference & EXPO East 2008 in Miami
  • 3CX and XeloQ Communications announce VOIP Solution partnership
  • 3CX Proves That Soft Is Better Than Hard - When It Comes To Phone Systems
  • 3CX and InPhonex deliver a complete and reliable VOIP Solution by joining forces
  • Broadvox SIP Trunking Has Been Incorporated into Software Based IP PBX from 3CX
  • 3CX and Portland Europe Partner to Enter Benelux IP Telephony Market
  • Innovative 3CX IP PBX for Windows now available to Danish resellers via Inter-Data A/S
  • 3CX and nexVortex announce fully integrated end to end business grade VOIP solution
  • 3CX Awarded "Best of Show" at INTERNET TELEPHONY® Conference & EXPO West 2007
  • 3CX Phone System joins Achab’s portfolio of innovative software solutions
  • 3CX chooses Upstream Software as distribution partner in Scandinavia
  • 3CX chooses Zen Software as distribution partner in UK and Ireland
  • 3CX partners with EBERTLANG to provide VOIP PBX technology to the German market
  • 3CX Joins Forces with VOIP Unlimited and ZEN Software Offering SIP Service Package
  • Visit us at INTERNET TELEPHONY® Conference & EXPO West 2007!
  • 3CX Phone System Provides Economical Enterprise Telephony on Windows
  • 3CX and Grandstream Partner to Deliver Windows-based IP PBX Solution for SMB Market
  • 3CX Phone System becomes Windows Server 2003 certified
  • Deerfield Communications Inc. Partners with 3CX to Provide VOIP PBX System
  • 3CX Phone System Wins WindowsNetworking.com Gold Award
  • 3CX Goes East
  • 3CX and Patton Team Up to Offer Flexible, Windows-Based VoIP for Small Offices
  • 3CX launches new IP PBX for Windows: 3CX Phone System
  • 3CX to give away 100,000 free phone systems
  • 3CX Phone System's Digital receptionist automatically answers calls
  • 3CX Launches IP PBX, VOIP and SIP information center in 22 languages
  • 3CX releases Beta of 3CX Phone System for Windows - FREE edition
  • 3CX announces opening of UK office
  • 3CX announces Nick Galea as CEO
  • 3CX to serve booming worldwide IP PBX software market from Cyprus
  • 3CX releases 3CX Phone for Windows
  • VOIP News - 3CX Phone System News
  • How do I Connect A SmartNode to the Network and import the configuration?
  • Is Microsoft ISA server supported as a firewall?
  • How can I setup integration between 3CX and Salesforce.com?
  • How can I use the 3CX Tunnel with a SIP hardphone?
  • What operating systems does 3CX Phone System support?
  • How do I update a Patton Smartnode to the latest firmware?
  • What is overlap dialing?
  • Why does 3CX require static port mappings (Full Cone NAT)?
  • How do I configure a CISCO router for to allow connection to a VOIP provider?
  • How can I view SIP traffic with a Network Capture tool?
  • How do I configure my Linksys router for 3CX Phone System?
  • What phones, gateways and firmware have you tested 3CX Phone System V5.1 with?
  • Can I still download V3?
  • How can I launch a call from a web based CRM package?
  • What’s new in 3CX Phone System V5?
  • How to solve Source identification errors
  • What is a SIP domain and how do I configure it correctly?
  • How does 3CX know its an external extension?
  • Configuring the Patton gateway to receive Fax calls
  • What is the firewall checker and why do i need it?
  • What is the cause of Installer error 2738, when installing 3CX?
  • Does 3CX Support SIP trunking/ SIP trunks?
  • How does Phone provisioning work?
  • How do I create a phone provisioning template?
  • How does 3CX Phone System decide whether a call is internal or external?
  • How do I configure Patton ISDN VOIP Gateways for a Point-to-Point Connection?
  • How can I adjust the configuration for unsupported VOIP providers or gateways?
  • How do I configure direct SIP Calls?
  • Is the Linksys SPA400 Supported?
  • What Call Progress Tones should I enter for my country?
  • Configuring Exchange Server 2007 Unified messaging with 3CX Phone System
  • Can hotels with Micros Fidelio use 3CX Phone System?
  • How to request support from 3CX
  • How can I localize 3CX Phone System?
  • How to use fax if using multiple network interfaces
  • How to convert a Cisco 7940 from SCCP to SIP
  • What SIP Phones can I use with 3CX Phone System?
  • What VOIP Gateways can I use with 3CX Phone System?
  • What VOIP Providers have you tested 3CX Phone System with?
  • Build History
  • Does 3CX Phone System work with BroadVoice?
  • What is the difference between the Free edition and the Commercial editions?
  • Does 3CX VOIP Phone System work with Vonage?
  • Analyzing a SIP call
  • Will a Linux version be available?
  • 3CX Phone System Commercial & Free editions support page
  • How to upgrade from the Free edition
  • Edition Upgrades
  • 3CX Phone System for Windows - Pricing
  • Ordering 3CX Phone System for Windows
  • How to buy 3CX Phone System for Windows
  • 3CX Valued Professionals
  • 3CX Supported VOIP Providers
  • 3CX Technology Partners
  • The 3CX partner program
  • 3CX Partner Order Form
  • 3CX Partner Application Form
  • 3CX Partner Program - Thank you
  • Become a 3CX partner and profit from the VOIP boom!
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