LG L7 II Dual - default line for a contact-number

[drlawgr]

Does anyone know how to make some phone numbers to be "default" on a specific Sim?
Meaning, even if phone is on SIM 2, when choosing to call a specific number from the contacts, the phone to automatically change and make the call through SIM 1?
Thanks in advance

 

[stalemate1]

I think you will have to speak to your carrier/service provider about that one.