Scall is a paging system operated by DeTeMobil since 1994. Like most other paging networks, Scall is divided into call zones by network type. The system uses the network infrastructure of Cityruf. It operates at 466.230 MHz, has the POCSAG code for signaling, and offers only numeric (N) in the call classes. The use of Scall is free of charge for the user, the sender of the radio call pays for the fees in the so-called calling party service. The reachability is about 25 km.