Auto-dialers are small devices capable of using a Stargate to establish a wormhole without the need for a DHD.
Functions[]
Auto-dialers are small, stone-shaped devices that could establish a stable wormhole using a pre-determined address, stored within the device, to even distant galaxies without the need for a large power source connected to the gate, indicating some form of advanced battery. The created wormhole lacks the unstable vortex that an engaging wormhole usually creates, indicating a different process than that which is used to activate a Stargate. (SG1: "Small Victories")
History[]
The device's first use seen by the Tau'ri was by Thor to return to the Ida galaxy with Samantha Carter. (SG1: "Small Victories")