SMSEagle MHD-8100 device is equipped with eight built-in modems. You can manage modem settings in web-GUI menu Settings > Maintenance Tab. There are following options available for multimodem device:

Multimodem selection strategy and modem failover mechanism settings

Multimodem settings

Multimodem selection strategy

This setting is responsible for modem choice strategy when sending SMS messages from SMSEagle. The following options are possible:

  • Round-robin

    In this strategy modems are selected sequentially one-by-one when sending out SMS messages. This means that device sends messages using modem1 > modem2 > modem3 > modem4, etc.

  • SIMX as Master modem

    In this strategy modemX is always selected when sending out SMS messages. If failover is enabled (see below) other modems will be always used as a backup in failover strategy

Enable modem failover mechanism

If this setting is enabled, when one modem stops working other will automatically take over his job. This feature requires at least two active SIM cards in the device. The health check for each modem is performed with 3 minutes frequency. If during a health check a modem is not connected to network the other will automatically take over his jobs (including messages waiting in Outbox folder).