We have had IPitomy send us new handsets which have fixed the buzzing problem. We had loads of complaints and finally the new handsets have improved that situation. Not sure what you mean by hot keypad, please explain. Finally, the network is brand new cat5e cable, phones separate from the data.
Finally the speakerphone. You are right on, sometimes its fine, sometimes the phone wont hear the DTMF tone to make an auto attendant selection. Also find that sometime the speakerphone has great quality sometimes the clipping is so bad that you cant use it. My customers and we have app. Hard to figure out a cause, especially when its supposed to be full duplex
