question: gets display name of nameaddress returns null id display name does not exist concode_field_sep String name concode_elem_sep SipURL url concode_field_sep boolean hasDisplayName concode_elem_sep void removeDisplayName concode_elem_sep void setAddress concode_elem_sep boolean equals concode_elem_sep boolean equals concode_elem_sep Object clone concode_elem_sep SipURL getAddress concode_elem_sep String toString concode_elem_sep void setDisplayName
target: String function ( ) { return name ; }