# How can I select a SIM slot based on ICMP detection?

**URL:** <https://forums.digi.com/t/how-can-i-select-a-sim-slot-based-on-icmp-detection/15221>\
**Category:** Digi TransPort WR (Series)\
**Tags:** connection, wr44\
**Created:** [August 3, 2015, 4:56pm UTC](https://forums.digi.com/t/how-can-i-select-a-sim-slot-based-on-icmp-detection/15221 "2015-08-03T16:56:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gnuhow](https://avatars.discourse-cdn.com/v4/letter/g/f475e1/32.png) [@gnuhow](https://forums.digi.com/u/gnuhow)\
**Post date:** [August 3, 2015, 4:56pm UTC](https://forums.digi.com/t/how-can-i-select-a-sim-slot-based-on-icmp-detection/15221/1 "2015-08-03T16:56:25Z")

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I would like to switch between the primary and backup SIMs based on a ping to a remote server.

When the router cannot reach the remote server, it will switch to the backup sim.

Is there any way to set this up?

Doug

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**Author:** ![userid0](https://avatars.discourse-cdn.com/v4/letter/u/f6c823/32.png) [@userid0](https://forums.digi.com/u/userid0)\
**Post date:** [August 5, 2015, 8:58am UTC](https://forums.digi.com/t/how-can-i-select-a-sim-slot-based-on-icmp-detection/15221/2 "2015-08-05T08:58:10Z")

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The following articles should prove useful for this scenario:

[http://ftp1.digi.com/support/documentation/AN\_014\_Dual%20SIM%20failover.pdf](http://ftp1.digi.com/support/documentation/AN_014_Dual%20SIM%20failover.pdf)

[http://ftp1.digi.com/support/documentation/AN\_015\_Dual%20SIM%20failover.pdf](http://ftp1.digi.com/support/documentation/AN_015_Dual%20SIM%20failover.pdf)