I just received my G2500 for use with my Verizon Treo 600. The audio from it's (the 2500) internal speaker is fine. However the people I am speaking with hear a loud and annoying echo. I tried using the external mike which I placed over my visor, far from the 2500 - yet there is no difference with the echo. I beleive it is an electronic echo created in the duplexing of it's internal amplifier.

Does anyone else have any comments on this that may be helpful.

Also, I can not find where to plug in an earbud HF as tnere are two jacks, one on top next to the GPS rj jack, and that is labeled SPkr the other jack is just above the ovlume control on it's side. That too does not work for the earbud type HF. I have several of those earbuds that work fine with the treo alone, but none when it it in the 2500 cradle. My email is k2mmt@arrl.net