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VoIP call with SIM box and gateway

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 "Scheme of VoIP call with Sim box" was designed using ConceptDraw PRO software extended with the Interactive Voice Response Diagrams solution from the Computer and Networks area of ConceptDraw Solution Park.
IVR diagram
IVR diagram, sim card, router, access point, graphical user interface, double arrow, data center,