I know I can avoid importing duplicate 'Phone types', I'm trying to avoid importing duplicate 'Phone Numbers'
eg. Pre-existing phone number is as follows: Phone type = Phone / Phone number = 905-688-5550
The New Import is creating Phone type = Phone 1 / Phone Number = 905-688-5550
So it appears as 2 different phone types with the same phone number
I now have to go into the record and delete the duplicate row