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What is Voice over IP (VoIP)?
Voice over IP (VoIP) is a method of sending voice signals over an INTERNET protocol (IP) based network. The technology uses voice coder/decoder (codec) devices (DSPs or application software) along with call processing algorithms running on either embedded telecommunications systems or computers to convert analog voice signals into IP based packets suitable for transmission over the IP network or INTERNET. Calling functions are typically managed by a protocol called SIP (Session Initiated Protocol) that handles the routing and management of VoIP Calls. VoIP products such as VoIP IP Telephones, VoIP IP PBXs and VoIP Gateways may use SIP for call routing. VoIP IP Telephones typically have a telephone instrument that connects to a network interface device or router or IP access point instead of a telephone jack from the central office. IP PBX equipment usually can connect both VoIP IP Telephones and standard analog telephone instruments and even connect to the central office using existing legacy telephone lines. VoIP Gateways use higher density telephone lines called T1 or E1 and convert them to VoIP for call placement over VoIP Networks.
If you need VoIP IP Telephones, IP PBXs or VoIP Gateways and Conference Servers, please review our product line below:
What is a Secure Satellite VPN Network - Secure Satellite VPN using VSR-30 or VSR-1200
What is a Small Business IP PBX? - Small business IP PBX What is an ISDN Signaling Converter? - ISDN Signaling Converter
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