【實用生產應用app】Do Do Sound|最夯免費app-綠色工廠好玩App

Do you think it's annoying when you repeatedly calling someone by using landline phone or fixed phone?Now. Get ‘Do Do Sound’ free and let you call your friends, customers or companies simply and conveniently using landline phone.‘Do Do Sound’ is a DTMF dialer, it can dial phone numbers from your PSTN telephone via DTMF tones. It’s very easy, just simple 2 steps to use this:1. Easily dial a number or you can insert it from contact list.2. Put your mobile phone near the landline phone speaker then press ‘Play’ button, then you will hear the numbers are playing in DTMF tones to your Landline phone.Moreover, you can adjust the tone speeds, delays and lengths on ‘Do Do Sound’ settings.It will depend on your situations, let you get more flexible on dialing, call forwarding or other calling services.You can also check call history on front page if you going to call previously number.