The add-on let you choose the SIM card and caller id settings for an outgoing call.
Also it can remember the decision for the next time.
For now it only works with local contacts!
reroute outgoing calls / directly call phone numbers / read phone status and identity / write call log:
As this is a beta calls must be canceled and reinitialized in order to change the SIM
read your contacts / modify your contacts:
The add-on stores the SIM card and caller id settings directly in your contacts