Im having issues setting up my voicemail on my iphone 4 [version 4.1] with t-mobile [UK] I have dialed 222 to setup it up, then called the voicemail number, created my PIN and the voicemail message, thats all fine. But when I dial the mobile number [from another phone] it does not kick into the voicemail, but rings out and states the person is not there after about 20 rings. If I setup Call Forwarding to the voicemail number through Setting - Call Forwarding, then dial the number it goes straight to the voicemail message fine. But cant work out how to setup the voicemail normally, ie goes to voicemail message after 5 rings etc. When I dialed the voicemail number and went through the option to create PIN and message, there was nothing about duration of rings before voicemail starts and can not find anything online to set it up. Any help would be grateful.