2.2.1.4.13 PidTagTelecommunicationsDeviceForDeafTelephoneNumber Property

Type: PtypString ([MS-OXCDATA] section 2.11.1)

The PidTagTelecommunicationsDeviceForDeafTelephoneNumber property ([MS-OXPROPS] section 2.1041) specifies the telephone number for the contact's text telephone (TTY) or telecommunication device for the deaf (TDD).