VoIP-info is your go-to website for anything VOIP. This includes VoIP software & hardware, service providers, tips and tricks as well as anything related to voice over IP networks, IP telephony and Internet Telephony.

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Getting Started with VoIP

• What is VOIP? The very basics.
• Free VOIP Publications: Magazines and Newsletters free to qualified subscribers about VOIP related products
• Training: Seminars, tutorials, on-line classes. Check here for upcoming Training schedule.
• VOIP Consultants: Finding help.
• VOIP Service Providers – VOIP service providers.
• VOIP Providers USA – VoIP Service providers in the United States.
• Best VoIP Service Reviews and Pricing
• VoIP Service Providers Business
• VoIP Service Providers Residential
• VOIP Server Monitoring – VOIP server monitoring providers.
• DID Service Providers – DID VOIP call origination service providers.
• VoIP Practical Guide – VoIP Resources for Your Home and Business
• How to start a VOIP Business – Guides and Resources to Start your own ITSP

VoIP IP PBX and Servers

Popular choices – please do not alter this list, add new entries here

• 3CX – Software based VoIP IP PBX for Cloud, Windows & Linux
• Asterisk: Open Source development platform to make a PBX
• FreeSWITCH: Open source cross platform SIP switch.
• Kamailio: Flexible and powerful open source GPL SIP ( RFC3261 )
• More: VOIP PBX and Servers, VoIP Hardware, Call Center Software, Virtual PBX

Connecting Phones to VOIP – VoIP to PSTN, PSTN to VoIP

• IP Phones: VoIP phones both hardware and software
• Analog Telephone Adapters: VoIP analog telephone adapters ATA – see Cheapest ATAs and Service
• Digital Telephone Adapters: VoIP Digital/TDM telephone adapters
• Dial Pulse to Touchtone DTMF Converters – connect that old rotary phone to DTMF VOIP equipment
• VOIP Paging and Intercom
• VOIP Payphones
• VOIP and TTY VOIP and hearing impaired TTY terminals
• VOIP Paging Equipment – paging with VOIP
• Hosted VoIP
• Free VoIP Networks – list of Free VoIP Providers
• Mobile VoIP
• Wireless VOIP: Cut the wires! Roam free with wireless VOIP
• SIP Trunking
• Long Distance Phone Service
• FXS-FXO Converters – Convert an FXS interface to an FXO interface
• PSTN Gateways – VOIP to PSTN gateways (also known as: Media Gateways)
• ENUM – Translating E164 numbers to VoIP addresses
• VOIP Termination and VOIP Origination

VoIP Protocols / Markup

• IP Protocols COPS, ENUM, H.323, IAX, IMS, LTP, Megaco, MGCP, PINT, RTP, RTMP, SCCP, SCTP, SDP, SIMPLE, SIP, STUN, T.37, T.38, TRIP, TURN
• ITU protocols SS7, ISUP
• OSP, PacketCable MRCP
• Encryption Protocols ZRTP
• Basic call routing and rules for UA’s or VOIP servers CPL
• IVR Presentation and dialog management: VoiceXML, CallXML
• Call control / conferencing / call routing: CCXML
• IVR / Speech recognition definition: SRGS
• IVR / Speech synthesis definition: SSML
• IVR / prompting / recording / conferencing / DTMF / Voice: CallXML
• SD-WAN, MPLS

Traditional Telephone Network

• Analog Telephone Information
• PBX features
• PSTN Interface Hardware
• RESPORG: Toll Free 800 Number Programming
• Telecom Dictionary
• Telco Engineering Information
• Telephone History

Related Topics to Business and VoIP

• Cloud Computing
• Hosted Collaboration
• Hosted Virtual Desktop
• Web Conferencing
• Web Hosting
• Unified Communications

FAQs

• Posting Guidelines
• IP PBX FAQs