Where is lync meet now url stored?

Hi all,

In lync 2013 client when we click on meet now it creates a conference with single participant and it generates a meet now url which we get to see on lync 2013 client. when this url is given to a person who doesnt have lync client can join the audio/video conference.

My question is where is this meet now url stored

1.Is it in database(sql)

2.In active directory

3.Is there any api to get this url

can someone please guide me on this

Thanks