system to use to manage the sim cards
Eso debe saberlo cada proveedor de Sim.
Yo compro sim card en la empresa https://connect.grupobion.com/services/conectividad-m2m/ y ahí puedo administrar los costos y conexiones de las tarjetas sim.
That should be known by each Sim provider.
I buy sim cards in the company https://connect.grupobion.com/services/conectividad-m2m/ and there I can manage the costs and connections of the sim cards.
also you ca use twillio
Hi, someone know about some system that i can use to know if the sim card is online or offline?
like a management system for the sim cards!