VTech - CS6629-2 Cordless Phone - 1.90 GHz - DECT 6.0 - Black

Hi - The VTech CS6629-2 does not have a call block feature. If you are interested in the said feature, you may check the models IS8251 and IS8129. Thank you, -VTech Support

Hi - The VTech CS6629-2 has a built-in answering machine. You need to press the ANS On/Off button on the telephone base until you hear "calls will be answered" to turn on the answering machine. Thank you, -VTech Support

Hi - Yes, the VTech CS6629-3 has a built-in answering machine. Thank you, -VTech Support