1. jgawrych's Avatar
    I need to press and hold "9" for 3 seconds to buzz someone in. I have a Samsung Galaxy S3. When I press and hold the "9" key, the tone does not last long enough. I tried pressing multiple times with no success.

    Is there any way to make a cell phone do this?

    Thanks
    09-08-2013 03:43 AM
  2. Chris Miller14's Avatar
    You need nfc enabled door locks but I think the range is quiet short.have a look on the net

    Posted via Android Central App on my s3 GT 19300
    09-08-2013 07:17 AM
  3. Golfdriver97's Avatar
    I need to press and hold "9" for 3 seconds to buzz someone in. I have a Samsung Galaxy S3. When I press and hold the "9" key, the tone does not last long enough. I tried pressing multiple times with no success.

    Is there any way to make a cell phone do this?

    Thanks
    You may be able to find a dialer app that allows changing the key tone. That is the only thing I can think of.
    09-08-2013 08:42 AM
  4. gozirra's Avatar
    Hit the green Phone icon. Hit the menu button. Call settings. Scroll all the way to the bottom. DTMF Tones (set length of DTMF tones). Tap Long. See if that works?

    If not, here's a free app that plays the DTMF tone for as long as you press the button, sounds like what you need.

    https://play.google.com/store/apps/d....ToneGen&hl=en
    Golfdriver97 likes this.
    09-08-2013 11:00 AM

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