Conditional. This field will not be returned if the object 'aliases' presents.
This attribute contains the alias data, e.g. phone number, email address, etc.
If phone number is used for alias, this should be provided in accordance with ITU-T E.164 (2010) number structure. Below are some examples of phone numbers with different country codes:

Country	Country Code	Examples
United States	1	1650xxxxxxx
Russia	7	7495xxxxxxx
United Kingdom	44	4478xxxxxxxx
Singapore	65	659xxxxxxx
Hong Kong	852	8529xxxxxxx
Kenya	254	254701xxxxxx

If IBAN (International Bank Account Number) is used for alias, this should be provided in accordance with ISO 13616:2007. Below is an example of IBAN:

Country	Example
Ireland	IE29AIBK93115212345678 where Country Code: IE Check digits: 29 Bank Identifier: AIBK Branch Identifier: 931152 Account Number:12345678

Visa Direct