Overview: Cellular Integration (GSM/CDMA)
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The Global System for Mobile communications (GSM) Network is the most popular cellular network in the world, and the SpydurPBX is able to take full advantage of free on-network calling on any GSM Network. Simply purchase a Subscriber Identity Module (SIM Card) from your cellular service provider, add the new cellular device to your monthly billing plan with the cellular service provider, insert the SIM Card into the SpydurPBX GSM Integration device, and you now have free on-network calling with your cellular service provider!

This means not only can can you call any of your company cell phones at zero cost straight from your deskset, but you can call any cell phone subscribed with your company's cellular service provider!


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