^^
Thank you all folks for your help.
Here is what I found.
(I have tried calling from my own home to myself - from the logged in website to my phones and have not started calling from outside yet - I still need to experiment that )
* I have latest Firefox Mozzilaa browser.
* I have OBI 200 and OBI 202 – with total 4 diff. line. ( OBI 202 has two diff. lines )
* I went to my dashboard and there was an orange triangle advising me to upgrade to the latest software and it took 3-5 min to upgrade and that orange triangle is gone, so It has got current upgraded software now.
* I went to the dashboard and pressed that green color phone icon,..
* I do not have soft phone,.. so in the "speed dial" pull down,..
I selected my OBI202's lines.
* I made more than 50-100 experiments and concluded these things.
1.
Though, the note says,.. you can dial the OBI phone,... but in fact, you can dial to any US number phones, ( non-OBI lines ) .. means,.. even if you are not dialing to the OBI phone,.. that also works, as it is dialing using your OBI US number, ( via PC and mic-headphones ) from which the phone is dialed.
2.
And more importantly, this service is annoying, disgusting, not trustworthy and worked very randomly and in a totally strange way. Which pattern or harmony it follows, I still could not find/figure it out,.
Means,.... You try 5-7 times and hardly one times it will join and will ring,... 5-6 times it won't and you again open-close yr browser,.. refresh page,. Again try 5-7 times,... may hardly one time it will work,... rest the phone is not ringing !
And, this is the sorry-fact disgusting science of it,...... even after I attempting 100+ times rebooting, refreshing my page, re login,. Refreshing the dashboard page,. Closing the page reopening,.. delete cookies, ..... And all other way,.. but still this strange and disgusting science of which harmony it's following or what it is violating here,.... I still could not find any remedy,.... or why it is doing like this,.. and on that basis,. I may not consider as totally trust-worthy.
Out of 6-7 attempts by closing and refreshing the dashboard, page
and all such it works hardly 1 out of 7 attempts,. And hence can not treat is as any reliable or trustworthy,.. to let my relatives living in other nation, to let them be given my login passwords and let them to call me, on my OBI number, here in the US.
Out of 6 attempts 5 times it just does not work, and that's the fact,
unless you explain me what I am missing of here !! Not satisfied!