When you login at https://www.freephoneline.ca/showSipSettings and see "Your SIP Settings", those recommended settings listed under that heading, unless you've manually entered them, don't reflect the settings presently entered in your ATA, IP Phone, or SIP app.
The only information that is updated on that page, at each registration interval, is "SIP Status" (registration state) and "SIP User Agent" (SIP device or App being used).