| AreaCityCode | Code assigned for telephones in a specific region, city, or area. |
| CountryAccessCode | Code assigned by telecommunications authorities for international country access identifier. |
| DefaultInd | When true, indicates a default value should be used. |
| Extension | Extension to reach a specific party at the phone number. |
| FormattedInd | Specifies if the associated data is formatted or not. When true, then it is formatted; when false, then not formatted. |
| PhoneLocationType | Describes the location of the phone, such as Home, Office, Property Reservation Office, etc. Refer to OpenTravel Code List Phone Location Type (PLT). |
 PhoneNumber | Telephone number assigned to a single location. |
| PhoneTechType | Indicates type of technology associated with this telephone number, such as Voice, Data, Fax, Pager, Mobile, TTY, etc. Refer to OpenTravel Code List Phone Technology Type (PTT). |
| PhoneUseType | Describes the type of telephone number, in the context of its general use (e.g. Home, Business, Emergency Contact, Travel Arranger, Day, Evening). Refer to OpenTravel Code List Phone Use Type (PUT). |
| PIN | Additional codes used for pager or telephone access rights. |
| Remark | A remark associated with the telephone number. |
| RPH | Used elsewhere in the message to reference a specific telephone number (including faxes). |
| ShareMarketInd | Permission for sharing data for marketing purposes. If the value=Inherit, specifies data sharing permissions for marketing purposes. |
| ShareSynchInd | Permission for sharing data for synchronization of information held by other travel service providers. If the value=Inherit, specifies data sharing permissions for synchronization of information held by other travel service providers. |