Through subtle mechinations I've managed to convert most of the management team in the office to HTC Android handsets. One of them came up with an interesting request the other day; how do you increase the length of time it rings for before the voicemail system kicks in?

I'd never even considered this as an option on the phone before, but a quick google around and I found out how.

Step 1: Go to your phone calling app and type *#61# then press the call button. This will return a telephone number, which should be your voicemail number (in my case 121 on the UK Vodafone network) and on most smartphones it will also return the current delay in second for the voicemail.

step 2:

Key in the number below replacing the string 'voicemailnumber' for the number you saw above (in my example 121). Also replace the string 'seconds' with the number of seconds you want it to ring for. I've read that this is set in five second increments, I've pushed a handset up to thirty seconds but I don't know if this is network specific or handset specific.

Make sure there are no spaces, and remember to press the 'call' button afterwards. If the command works you will get a small pop-up window on your screen.