Could handsfree set be incompatible with device?
My Pretec GPRS card was with simple - earpiece+microphone headset. It works only in one dirrection, I can hear, nowbody can hear me. So I suspect it's incompatible or broken. It has plug with 4 contacts while GPRS module's femail has 6 contacts.
I'm not expert in this issue and be glad to hear some more proffesional voice(s).
Thanks,
suruaZ
