Contact Lab employee who provides coordinates receiving samples and returning test results. See Also Title Job title of the contact at the lab. See Also Number The telephone number for this person. You can enter up to 15 characters. If a telephone number mask has been created for the appropriate country, you do not have to enter any formatting characters such as brackets or dashes. APM will automatically format the number correctly. Extension The extension for this phone number. You can enter up to 6 characters.