Circuit-Switched Data (CSD)

Iridium’s Circuit Switched Data service is an asynchronous, circuit-switched, 2400bps, bi-directional service.

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Circuit switched data (SBD) post-paid airtime plan


Circuit Switched Data allows for dial-up services. It can be used for larger amounts of data, including files of dozens or hundreds of megabytes.

CSD is ideal for applications where a limited number of field devices need to send their data a few times per day, or where the user, from a central location, reaches out to the field applications to retrieve their data.

For more information on these plans or to learn more about our data services, please contact our sales team. Regardless of how big or small your airtime requirements, we have a plan for you.

* Service charges and applicable fees may apply

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