Import contacts on phone app

[RDWild]

To dial out, I need to dial 9, followed by 1, (areacode) number.
My contacts are saved on my phone either with 1, (areacode) number, or just (areacode) number. How do I get it to prepend 91, or just 9 in front of my contacts when I sync them to the 3CX app?

Or, is there a better way to do this?

I need suggestions for both Android and IOS.

 

[Saqqara]

Why do you need to dial 9, is this left over from an older pax system. 3cx does not require this

Use outbound rules to adjust the number so your provider accepts it https://www.3cx.com/blog/voip-howto/outbound-rules-a-complete-example/