Advance Users - WAN MANAGEMENT TR069

Dear Members,

I have gone through the setting and have come across the following specs under advance -> TR069 in my echo life modem

TR069 activated

URL http://acs.ptcl.net:9090/web/tr069

User Name XXX

Password XXX

.

.

.

etc

Well TR069 is a WAN CPE Management module of CDRouter. Additional information can be gathered from here. The question is it is usually used for network testing but also to implement policies, my guess is to limit use of bandwidth etc once a certain limit is reached or perhaps security purpose as well. Any member as any ideas?