Ever since I got DSL (from Verizon), I have been having problems with
> the speakerphone service. I've tried two or three phones, and for
> some reason, although I can hear people speaking when I try to use the
> speakerphone on my regular phone, no one can hear me when I speak.
> Has anyone else had similar problems with DSL service?
Do you have a DSL filter in series with the speaker phone? My DSL kit came with several "Z-Blocker" DSL filters, you're supposed to put them in series with all the phones since some phones will interfere with DSL, and DSL will interfere with some phones.