Telephone Number Type phoneType extPhoneType refinedPhoneType refinedExtPhoneType POSC 1.0 voice The telephone number is a conventional number which is used for voice contact. fax The telephone number is exclusively used for receiving faxes. mobile The telephone number is a mobile telephone, such as a cell phone. voice/fax The telephone at this number is capable of voice communication and of receiving faxes. voicemail The telephone is connected directly to voice mail. A voice phone may lead a caller to voice mail. However this choice qualifies the phone type as being only voice mail.