I've recently purchased a p20 pro handset with the dual sim option. I've had a quick search on the web about the query I have but there doesn't seem to be any information in regards to this specifically.
I was wondering if anyone could advise if there is an option to set a 'default' SIM on a per contact/group level? or if there is a third party application which would allow me to do this. I've noticed that some applications don't seem to be programmed to deal with a dual sim handset (such as android auto)
Troubleshooting steps undertaken
I've had a look online and after some investigation I've noted that in the specific case of Android Auto the Android Auto/Google speech recognition software isn't programmed to detect dual SIM cards.
From what I have been able to figure out Huawei EMUI has a 'graceful failover' programmed in which prevents a crash in these applications by routing the call through either the 'default sim' (if set) or if the phone is set to 'Always prompt for sim selection' the phone will select SIM 1. I've tested this in a few applications including android auto and google assistant and this theory seems to hold true.
As I want to be able to call different contacts from a specific SIM card using the google voice command while on the go, I have had a look into the contact groups setting and specific contacts but either I'm missing something (quite likely as I haven't had a dual sim handset before) or there isn't an option to set a SIM at this level of granularity.
Any help that could be offered would be appreciated.