EF81 Signal Strength. Can this be increased. Thanks.

[starlight2007]

I was just wondering if their is any way to boost/increase the signal strength on EF81 as at times it seems weak.

I have tried Virgin, Orange and other network sims in the phone and although it works quite well it never seems to show the same sort of signal strength as other none EF81 phones with the same sim car installed.

This is important for 3G Video Calling.

I find less problem outdoors but when indoors at home or in a building the signal drops dramatically.

Thanks for any replies guys.

Andrew