SIP in higher education

[Robert Macek <>]

Hi all,
recently I got a VSX3000 for testing.
One of the features that it has is SIP support.
So, I've tried to connect my Windows messenger client with Polycom. I'm using my test SIP accounts on iptel.org.
When I'm calling from polycom to messenger everything works fine (audio + video). But, when I'm trying to reach polycom from messenger - it doesn't work.
Has anybody tried this and succeed?
Any other comments would be greatly appreciated.
Best regards,

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Robert Macek
Hrvatska akademska i istrazivacka mreza - CARNet

tel: +385 1 6165 616
http://www.CARNet.hr