Very pronounced "speakerphone" effect to calls?

[tritch]

Full duplex here with no speakerphone effect whatsoever. I've called cell phones, POTS and other Voipo users. Voipo to Voipo calls are exceptionally good and clear (reminds me of the Vonage commercial with the guy hanging upside down). It must be some other hardware/network problem in the mix causing the problem for some users....handsets, etc.

[Russell]

Same here - full duplex afaik. Faint echo at times but often goes away.