<Tr> <Td> Ecuador </Td> <Td> 6P2C </Td> </Tr> <Tr> <Td> Egypt </Td> <Td> 6P2C </Td> </Tr> <Tr> <Td> Estonia </Td> <Td> 6P2C, Polish national 5 - pin (WT - 4) </Td> </Tr> <Tr> <Td> Faroe Islands </Td> <Td> 6P2C </Td> </Tr>

What type of modular plugs and jacks do telephone company systems use