While Verizon has sold fewer iPhones than some analysts expected, Shammo said he was happy with sales of the "six-month-old phone" that only works in some countries.

When the next iPhone model launches Verizon will be able to offer it at the same time as AT&T. Verizon's version will also work in as many countries as AT&T's iPhone, which has global coverage, Shammo said.

Shammo also noted that if the next generation iPhone doesn't support LTE, Verizon will have plenty of alternative devices for those who want a faster connection.