New Version Pulse to Dual Tone Multi-Frequency DTMF Converter Enhanced Module Features:   If you live in the city telephone line has not support dial-up telephone ,Install this module, you dial the phone (no matter which domestic old phone) you can on the telephone line normal use! But also increased the redial and allocated * # # function. * DIALOR2.0 can make the old dial telephone to use circuit module;She would not be modern switches to identify the pulse signal can be converted to modern switches recognition of dual tone multiple frequency signal;This allows those who could only do decoration is the collection of telephone also can be used in daily life normal again. * DIALOR2.0 enhanced version has a redial and set aside # and * , such as function, makes the old telephone also can compare with modern telephone! * Easy to install and use, just connect the 2 wires of the telephone to the designated terminal block and plug in the crystal head of the telephone line to use. * Note: Dial the dial to the end, do not let go, then the indicator light is not lit; otherwise there is a problem with the phone! The dialing method is the same as the old telephone dialing habit; Redial method: dial 1 for about one second, release the dial pad; that is, redial ; Dial * # method: dial 2 to wait for about one second, release the dial pad, that is, dial the * number; the same method, dial 3 is to dial #. Specification: - Condition: 100% brand new and high quality - Color: Creen+White - Dc voltage: 32 v, 48 v.Current: 20-40 ma - Quantity: 1pc Package included:  1 x Telephone module Pulse transfer dual tone multiple frequency DTMF converter