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When connected to one person, I hit the "+" button, select a contact, and then the iphone indicates it is calling the 2nd person but the 1st person remains audible on the call. After a few seconds, the 2nd call appears to go through because the "merge" button appears as well as the name of the 2nd person I called. However, when I tap the "merge" button, the 2nd caller is not there. When I hang up with the 1st person and call the 2nd person, they tell me they didn't receive the 1st call to them.
Is this a phone problem or user problem?
Thanks,
My carrier is Verizon, and their customer support assured me I should have 3-way calling.
Have you tried these instructions?
http://support.verizonwireless.com/clc/features/calling_features/3_way_calling.h tml
Unfortunately these instructions don't really apply to the iPhone. It has a different interface. But thanks anyway.

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