Store up to 4 different phone cards and access numbers No external power adapter required (line powered) Local/ remote configuration with DTMF key entry from standard telephone set Plug directly between wall jack and a telephone set Re-route users call with specified access number and PIN codes. Pass through all toll-free local and service calls Smart programming for additional custom features Prefix removing function.-------NEW! Force replacement of access number function.----New! Intelligent auto pickup least cost route (LCR) function.-----New! Eliminate user mistakes in dialing access number and PIN code