How VoIP works

This interactive voice response (IVR) diagram sample shows how Voice over Internet Protocol (VoIP) works. It was designed on the base of the Wikimedia Commons file: Voip HowItWorks 0203v2.jpg. [commons.wikimedia.org/ wiki/ File:Voip_ HowItWorks_ 0203v2.jpg]
"Voice over Internet Protocol (Voice over IP, VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service." [Voice over IP. Wikipedia]
The IVR diagram example "How VoIP works" was designed using ConceptDraw PRO diagramming and vector drawing software extended with the Interactive Voice Response Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.

This interactive voice response (IVR) diagram sample shows the Scheme of VoIP call with SIM box and gateway. It was designed on the base of the Wikimedia Commons file: Scheme of VoIP call with Sim box.png. [commons.wikimedia.org/ wiki/ File:Scheme_ of_ VoIP_ call_ with_ Sim_ box.png]
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license. [creativecommons.org/ licenses/ by-sa/ 4.0/ deed.en]
"A SIM box (also called a SIM bank) is device used as part of a VoIP gateway installation. It contains a number of SIM cards, which are linked to the gateway but housed and stored separately from it. A SIM box can have SIM cards of different mobile operators installed, permitting it to operate with several GSM gateways located in different places." [SIM box. Wikipedia]
The IVR diagram example "VoIP call with SIM box and gateway" was designed using ConceptDraw PRO diagramming and vector drawing software extended with the Interactive Voice Response Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.