[This is preliminary documentation and subject to change.]
| Common-Name=Telephone-Office1 | Admin-Display-Name=Telephone-Office1 |
| Admin-Description=Telephone-Office1 | Object-Class=Attribute-Schema |
| Attribute-ID=1.2.840.113556.1.2.118 | OM-Syntax=64 |
| Attribute-Syntax=String(Unicode) | LDAP-Display-Name=officePhone |
| Single-valued | System-Only=FALSE |
| Mapi-ID=\x3A08 | |
| Range 1 to 64 | |
| Schema-ID-GUID={f0f8ffa4-1191-11d0-a060-00aa006c33ed} | Comment=used by Exchange |