This article explains the available SIM slots on SSR devices and clarifies which slots can be used based on the management mode (Mist-managed or Conductor-managed).

A) For Mist-managed SSR devices, only the primary SIM slot is supported, as this behavior is hardcoded in the software.

B) For Conductor-managed SSR devices, both primary and secondary SIM slots are supported; however, only one SIM can be active at a time.

If you face any further issues, please contact JUNIPER JTAC Support for assistance.