I will be going to Europe and stoping in Seol (South Korea) on the way, are phones cheaper to buy there then in NZ and can I use those phones with the telecom or vodafone network back in NZ?
Thanks for any info
As above take note of the frequencies used. Primarily Vodafone use 900 MHz GSM and 2100 MHz UMTS / HSDPA (they do also use 1800 MHz GSM to a lesser extended and UMTS 900 MHz).
Currently you will not be able to use an imported phone on the Telecom CDMA network. Telecom's new GSM network will be here in November and they will use 850 MHz for GSM/EDGE and 2100 MHz for UMTS / HSPA.