One Button two doors 3 wires TCS ISH3130

Hello,have a TCS ISH3130 and one main door and one door for my floor, both open by pressing one Button.The wiring is so that it will trigger the second door on the Wire P.Will there be a solution soon to support a three wire connection?Would it be possible to install two ring intercoms on the same intercom in the house or would they interfere?Or has anyone already tried a two ring setup I don't want to destroy a ring device.Thank you for your help.BR osmos