- Push to talk button- Phone line powered- Vandal resistant, stainless steel faceplate with heavy-duty metal call buttons- Non-volatile E2 memory (no batteries required)- Touch Tone or pulse dialing- Programmable to dial up to 5 numbers on busy or ring no answer- Red off-hook LED indicator- Hangs up on CPC, silence, busy signal, return to dial tone, time out or a Touch Tone command- Programmable to auto-answer on incoming calls- Remotely programmable- Extended temperature range (-15?F to 130?F)- Flush mountable using included plastic rough-in box- E-30-EWP has EnhancedWeather protection- Optional VE-5x5 surfacemount back box- E-30-EWP conforms to NEMA requirements