Hi, <br> <br> Sorry this may be off topic. <br> <br> Where do I start if I want to build a hard SIP IP phone?<br> Where do I get development platform and basic components such as dial pad, LCD display, spearker, codec support etc. I am only familar with high level user agent implementation. Would love to have pointers/references on this. <br> Is underlying OS linux or Windows CE? <br> <br> How much do I need to spend on this kind of development? <br> <br> TIA, <br> Wayne