R4S High end Gigabyte IP phone
6 lines IP Phone with 4.3 inch TFT color display

R4 High end IP Phone
6 lines IP Phone with 4.3 inch TFT color display

R3S High end Gigabyte IP phone
4 lines IP Phone with 3.2 inch TFT color display

R3 High end IP Phone
4 lines IP Phone with 3.2 inch TFT color display

R2 High end IP Phone
4 lines IP Phone with 128X224 graphic LCD at 4 level grey

R2LW WIFI IP Phone
4 lines IP Phone with 128X224 graphic LCD at 4 level grey

R1 High end IP Phone
Single sip account with 132X52 ot maxtrix FSTN LCD

RE
Extension modules ( 16 keys) with paper

RET
Extension modules ( 16 keys) with 4.3 inch TFT color display