Patent ID: 8600028

Claim:
An apparatus, comprising: a machine ( 105 , 305 ); a database ( 315 ) of telephone conference identifiers ( 525 ); a receiver ( 320 ) on the machine ( 105 , 305 ) to receive from a second machine ( 205 , 505 ) a request ( 605 , 615 ) to validate a telephone conference identifier ( 525 ) identifying a telephone conference; a validator ( 325 ) to validate said telephone conference identifier ( 525 ) against the database ( 315 ) of telephone conference identifiers ( 525 ) to produce a response ( 610 , 620 ); and a transmitter ( 330 ) to transmit to said second machine ( 205 , 505 ) said response ( 610 , 620 ) from the validator ( 325 ).