If you are not familiar with HTTP/URL query strings, the format is quite simple.

You add parameters to the end of the URL, the first parameter is separated from the URL page with a question mark (?) character. If the parameter is to be given an extra value, then that value follows the parameter name after an equals sign (=). Subsequent parameters are separated from the previous parameter by an ampersand (&).

Here is an example with 1 parameter that has no value:

https://your.evergreen-server.tld/phonelist?skipemail

An example of 1 argument with a value:

https://your.evergreen-server.tld/phonelist?overdue=21

An example of 2 arguments, 1 with a value and 1 without:

https://your.evergreen-server.tld/phonelist?overdue=21&skipemail

Any misspelled or parameters not listed in the table above will be ignored by the program.