The POP number didn't include a + or country code, this caused problems for international users that wanted to use the US POP. The POP numbers now include a + and the country code of the POP.
This is a discussion on POP number doesn't include a + or country code at the start of the number within the RF Dial forums, part of the Products category; The POP number didn't include a + or country code, this caused problems for international users that wanted to use ...
The POP number didn't include a + or country code, this caused problems for international users that wanted to use the US POP. The POP numbers now include a + and the country code of the POP.