I recieved this error at two different Susan of burlingame locations.
the error was casued by the site number, the telecheck site number was 8 digits IE 20060413. if you are processing to telecheck directly then they need to pre-pend the number with a 01 so it becomes the 10 digit number 0120060413. once we did that it worked fine.
they said that if you use paymentech or other processors other steps would need to be taken call verifone support for other processor errors.