Several differences between the Verizon and AT&T iPhone 4 have already been revealed, including changes in the antenna design and other components. What might surprise some people are actual differences in calling capabilities between the two devices. It’s not clear whether or not these differences in functionality are due to Verizon’s network technology or some other reason, however business users will especially be interested in these calling limitations.
Unlike the AT&T iPhone 4 pictured at left, the Verizon iPhone 4 doesn’t allow users to swap between calls on hold when adding calls to a conference. In fact, both calls pictured here are simultaneously connected and must be hung up together on the Verizon iPhone. In contrast, the AT&T user can switch between calls or join them together to create a conference call.
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Read the original post by Bob Bhatnagar