i had this issue too initially(the headline of the issue resembles my original post heading)..here is what i noticed.
in version prior to 2286, obi caller from gtalk from outside my home network lead to one way audio(they could not hear me).but it was just fine when they called gtalk on my home computer.i thought this definitely had to be Obi issue.i didnt hear back from anyone in this forum on the issue.but what i noticed was that, in 2286, the issue went away. now there is two way audio. there is a few seconds of pause before we start hearing each other after the connection is established. i did not test with 2289. you can probably try
2286.in my case too it was a call from another country. you can quickly test this from your office network or from a free Wifi place....in my case there was nothing international about it eventhough i used to think that way.
so, to summarize, try 2286 if you are facing issues with 2289. it worked for me under similar circumstances that you have.
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