@property<EOL><INDENT>def from_(self):<DEDENT>
return self._properties['<STR_LIT>']<EOL>
:returns: The phone number, SIP address or Client identifier that made this call. Phone numbers are in E.164 format (e.g., +16175551212). SIP addresses are formatted as `name@company.com`. Client identifiers are formatted `client:name`.
:rtype: unicode