Increase ring time on any GSM phone

You can use the following codes to control the delay from 5 to 30 seconds on any GSM phone:

1. To get the current call forwarding status, enter *#61#[SEND] into your phone.
2. Write down the 10-digit number(ignore the +1), this is the phone number that your calls are currently being diverted to.
3. Enter **61*[number]*11*[delay]#[SEND] into your phone using the phone number (numbers only) as reported by the status & the delay can be set to (5, 10, 15, 20, 25, or 30) seconds.
   To verify that the settings are correct, enter *#61#[SEND] into your phone.