A Signal Booster/Repeater is your answer!!!
Here's a Video of my signal booster : Uploading In Progress
If you are on T-Mobile Postpaid Look below
So you are postpaid, If you call in t-mobile and ask if you quality for a signal booster as you do not have good service in home but you do outside.
Certain requirements though to get one you need to live in a single family home and not in a apartment complex the reason is because E911 wont locate you and they cannot dispatch police right away* See ALL requirements here http://support.t-mobile.com/communit...signal-booster
They also require you to be a valued customer (having more than 1 postpaid line) in my case i had 5
If you are successful like I did you will get one for free and I also got it 1 day overnight express
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If you are on T-Mobile Prepaid or not meeting the requirements for a Cel-FI RS2 on Postpaid below this text
Calling in won't do anything because you're prepaid and not postpaid and you have no obligations with them for example EIP
Sorry to say, you aren't getting this one for free you can buy a Cel-FI Rs2 like postpaid from T-Mobile or Nextivity
or go a cheaper route and buy a Cel-fi RS1 on eBay they sell for about 130 - 150 bucks i got mine for 119 bucks
Theres no real difference with the RS1 and RS2 its just the RS2 has a bit higher signal output than the RS1 Coverage wise compared. i only saw 1 room difference ( RS2 Full signal everywhere, RS1 All but 1 room no signal )
The RS2 Can boost AWS 1700/2100 and PCS 1900 (PCS 1900 Available only in certain markets)
RS1 Can only boost AWS 1700/2100 (most if not all markets have this)
Just eBay search T-Mobile signal booster and you'll find it