The invention relates to a jaw clutch transmitter for a transmission, which includes a transmitter body, at least one torque transmission element which is connected to the transmitter body in a torsion-proof manner and is displaceable in the axial direction of a transmission shaft, and at least one clutch formation which is connected to the transmitter body in a torsion-proof manner and can be brought into engagement with a complementary driven wheel clutch formation of a gear wheel,and at least one slotted friction ring is provided which can be brought into engagement with the friction surface associated with the driven wheel. The invention also relates to a gearbox with at least one transmission shaft, at least one jaw clutch transmitterwhich is arranged displaceably on the transmission shaft, and at least one driven wheel provided with a driven wheel clutch formation which is engageable to the clutch formation on the transmitte, whereby the driven wheel is coupled with the transmission shaft in a torsion-proof manner, and the driven wheel is provided with a friction surface which can cooperate with the friction ring of the transmitter.