Change USB Device settings to find its port etc.

Hi

I recently bought a VOIP device Phonejack or majicjack. I am able to use this on a internet connected computer at home. I am not able to use it at Work or otherplaces where it is blocked by a proxy.

Is there a way to find more info on what port this device use for uploads/downloads etc. Since it does not connect to router I don’t see a IP for this.
Thanks
Suresh