With our 3CX HTTP API you can add, edit and delete accounts of your PBX extensions. You can create, edit and manage PBX extensions on our console and send manual links, configuration files, and voice mail PINs. You can use the softphone to modify auto-generated credentials and keep your customer records up-to-date. 3CX is a software-based, open standard, IP PBX that offers complete Unified Communications features, out of the box. SIP Trunk configuration instructions below apply to the following 3CX versions: 3CX v. 14; Documentation is provided for scenario where 3CX server uses Static IP address on the public Internet and when Dynamic IP address is used. 3CX Phone System is a software based PBX for Windows that works with SIP standard based IP Phones, SIP Trunks and VoIP Gateways to provide a complete PBX solution - without the inflated cost and management headaches of an 'old style' PBX. This guide is a part of building an enterprise open source VOIP System on Linux. 3CX is an open standard software-based IP PBX system which offers complete Unified Communications for your Business. By using 3CX, it becomes so easy to install, manage and maintain your PBX system, whether as a Cloud PBX or on a dedicated server on your premise. PBX Manuals F-R PBX, IP-PBX, digital business phone system and legacy key phone system manuals and telephone guides in PDF for free download. Manufacturers of these systems are listed below alphabetically from F to R and include popular telecom companies like Grandstream, Intertel, Iwatsu, Norstar and Panasonic. Use our HTTP API and manage all your 3CX PBX Extensions from one central dashboard. Save on admin time and effort and eliminate manual tasks by managing all your contacts and extensions from one place. Your CRM, telephone directory as well as PBX extensions and contacts are all automatically synced and updated. Make an update to one and the PBX Phone Manuals S-Z. Samsung DCS and iDCS Manuals; Samsung Officeserv 7100, 7200, 7400 Manuals; Sangoma PBX and Telehone Guidess; Free PBX Quotes. Mike's PBX and VoIP Tips. Business Phone System Info. IP Telephony Info & How-to's. Business Telephones. News & Events: News, Commentary & Events. VoIP Phone Systems, 3CX Phone Systems, IT Solutions - Philadelphia, Fort Lauderdale, Houston Download Free 3CX PBX; Vodia Phone System; VoIP Telephone Service Providers. nexVortex Business SIP Trunking; 3CX WebMeeting User Manual: Link: Make the right decision. We are continually working on improving and expanding our product documentation. Manuals for the following products are currently available: Xorcom IP PBX Xorcom Documentation CompletePBX Documentation IP Phones Documentation Astribank & Telephony Modules Documentation Analog VoIP Gateways Manuals Upgrade Instructions Marketing Materials Elastix Website - 3cx.com 3CX is an open standards PBX that works with popular SIP trunk providers and IP phones to allow you to setup a fully functional IP PBX with a complete set of unified communications features. 3CX is well known for its easy installation and management; setup is concluded within minutes and it's available on premise or in the cloud. Call setup for a call via a VOIP provider or an external extension Port range for RTP to VOIP provider is 9000- and up (configurable) 2 Ports per endpoint, one for RTP and one for RTCP! STUN request needed to get external IP Endpoints (phones) communicate with SIP server (3CX IP PBX) via SIP protocol PORT 5060 Get External IP via STUN Call setup for a call