Hi there I'm writing for more of that inter-tul master knowledge. I have 1 phone on a card of 12 phones that it does not know if you pick up the handset. It will ring, you can call out if you use handsfree or speakerphone, but you can't get a dial tone for "inhouse" extentions. I've switched phones and same thing. Any thought will help as always. Thanks in advnace.

Chris