Duel mode though will use more battery life, not only when you're in a 3G area but when you're not, as the phone is instantly searching to see if there is a 3G availability, Personally, unless I need a fast data connection, I leave my phone on GSM. That's how I get 3 days out of my N82 with heavy usage. Neil Barnfather WFA List Administrator Talks Users Host Don't forget TalkNav which is a Nuance accessibility and Wayfinder Access software dealer and distributor, for all your product needs with instant product activation and an online store supporting British Sterling, US Dollars and Euros. www.talknav.net +44 161 277 7997 service@xxxxxxxxxxx -----Original Message----- From: talks-uk-bounce@xxxxxxxxxxxxx [mailto:talks-uk-bounce@xxxxxxxxxxxxx] On Behalf Of Steve Nutt Sent: 07 October 2008 10:09 To: talks-uk@xxxxxxxxxxxxx Subject: [talks-uk] Re: Network modes and battery life Hi Clive, They are all different data modes. UMTS is not supported in the UK. Dual mode is always best, because if you wander out of your home network, it allows your phone to search for a stronger signal. All the best Steve -----Original Message----- From: talks-uk-bounce@xxxxxxxxxxxxx [mailto:talks-uk-bounce@xxxxxxxxxxxxx] On Behalf Of Clive Pallett Sent: Tuesday 7 October 2008 10:03 To: Talks-UK Subject: [talks-uk] Network modes and battery life Hello fellow listers, Does selecting a network mode affect the battery life on a mobile phone? My Nokia N91 has three network modes, dual mode , UMTS and GSM. I am on T-Mobile and I can use the dual mode and GSM, but when I select UMTS the phone goes off-line and I lose the network connection. When I select dual mode and check the network status, I sometimes hear 3G, so the phone must use this connection when available. Can someone on the list please explain what these modes mean and how they affect battery life. As I use Talks this shortens the time between charges, and I know you can adjust the backlight and display settings. Any help most appreciated. Thanks in advance. Best wishes, Clive pallett No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.173 / Virus Database: 270.7.6/1711 - Release Date: 06/10/2008 17:37