Up to two valid SIMs must be procured before configuring the cellular MDA or cellular ports. The SIMs must be inserted into the proper SIM slots before the node is powered up. SIMs cannot be installed when the node is powered on. To run the Automatic Discovery Protocol (ADP-Hm) on the node, a SIM must be inserted into slot 1; otherwise, ADP-Hm will not function. For more information about ADP-Hm, see the 7705 SAR-Hm and SAR-Hmc Main Configuration Guide "Basic system configuration".
For information about dual SIM operation, see Dual SIM deployment.