GSM Gateway functions as a SIM card also connects with a modular tower. They adapt the modular connection to SIP and supply the connection as a trunk in a VoIP PBX. The number of SIM cards a gateway can keep dictates how many calls you can make.
When you're a business organize has you out in the center of nowhere, there should not be an Internet interaction. As lengthy as your cell phone has activated, that's all you need to join your VoIP phone system!
GSM Gateways are great for redundancy or as a connection in positions where efficient analog or SIP connections are not suitable. They are excellent for remote locations where you have a modular connection but no Internet. If need be, with a GSM Gateway you can add and run your entire remote phone system out of re-start power and a cell tower. For added security, you can update on a Go3 No Questions Asked modification warranty!
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