Self-service codes are not available for all phone providers. These steps will work for T-Mobile, and may also work for third-party services that use T-Mobiles network. [1] X Research source If this method doesn’t work for you, call your provider’s customer service (you can usually just dial *611 from your Android to do this) and tell them how much time (between 5 and 30 seconds) you want calls to ring before transferring to voicemail.
If this code gives you an error, your provider doesn’t support this option. Most providers will still allow you to change the number of seconds it takes to forward
If you’re using T-Mobile, for example, the phone number will be 18056377243.
For example, if the phone number you wrote down is 18056377243 and you want incoming calls to ring for 15 seconds, you’d enter 61*1805637724315#. Although ringtone lengths vary, 10 seconds is usually about 3 or 4 rings, while 30 seconds is about 5 or 6 rings.
If you want to undo this setting in the future, dial the code again, but replace the number you entered with 30 (the default).
Although there’s no setting on your Android that changes the number of rings specifically, you can select a longer or shorter ringtone so you hear more or less sound. This will not change the length of time it takes for the call to transfer to voicemail, though—just the number of audible rings you’ll hear.
If you don’t like any of the tones, check out How to Get a Free Ringtone to learn how to create and download tones for free.
