Users can program any phone number(such as 911, service hotline number, etc. ) into TD105P. TD105P will auto dial the pre-programmed phone number, whenever the associated telephone is taken off-hook. If need, LeCall technician can help customer program the dialer remotely. ^^ Telephone line powered, no need extra power supply or battery. ^^ Easy to install and program. Users could program it locally using a standard touch tone phone or program remotely. ^^ Compatible with any regular telephone lines, VoIP landlines (not IP phones), analog PABX/KSU extension lines, fixed wireless terminals.
Compatible with regular telephone sets, no dial telephones, cordless phones, etc. ^^ The programming would retain even if the dialer is disconnected from phone line. After programming properly, it can be connected to other phone lines and/or telephones for using, no need additional programming.