Ericsson to Nokia contacts transfer

if you're using a phone with a sim card:

go into the contacts listing on the original phone.
menu
save (or export) contacts
specify to sim card
turn off phone

remove sim card
turn off new phone
put in sim card
turn on new phone

on new phone go into the contacts listing
menu
load
specify from sim card

you can now turn off your new phone and put the sim card they gave you back in if you wish.

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for CDMA phones:

there is a way that you can wirelessly transmit the data between two phones. i know this is what the verizon reps do when you buy a new phone.

if you have a miniusb port you can also use a program called bitpim on a computer to pull/push contacts to cell phones.