I'm wondering if anyone else has had this experience. In the last few years I've installed IP Office systems and used a mix of 5420s and 2420s at several sites. While the 5420s seem to work and sound perfect, not all but a significant portion of the 2420s seem to have a lot of "surf and wind" noise, a lot like holding a sea shell to your ear. Whenever I've run into this issue, I replace the 2420 with a 5420 and the problem goes away. It's gotten to the point that we won't accept 2420s from our suppliers as a substitute for 5420s. Has anyone else noticed this issue with the 2420s? It doesn't seem to be all of them, but it's a large enough percentage that we won't accept them anymore for IP Office systems.
If there's a setting that cures this, that would be wonderful, but I don't think there is.
Thanks in advance for your responses.