In our family theres 4 of us, we each have a mobile phone with these radio bands

Phone 1
GSM 850/900/1800/1900


Phone 2
GSM 900 / 1800 / 1900
HSDPA 900 / 2100

Phone 3
GSM 900 / 1800 /
WCDMA 850 / 900 / 2100

Phone 4
GSM 850 / 900 / 1800 / 1900
WCDMA 850 / 900 / 1700 / 1900 / 2100

At the moment two phones use Dtac , and one uses True move and one uses AIS ( One2Call )

We are all contacting each other through out the day on our mobile phones , but not using the phones to surf the internet or make international calls .

I was wondering if we could all use the same sim card package that offers cheaper calls if we make all our calls to and from the same network .

The other issue we have is that were we live in the same house , the phone signal is very good on True move , but Dtac and AIS are not so good .

I have had a look through the forum but nothing seems to fit .

Does any one know of a pre paid sim package that would suit us all and keep our costs down


thanks Jack

Most service providers have buffet, and special number plans, which allow for reduced on-net cost calling.

You'll have to get everyone on the same provider, then grind through the various promotions and plans.

It sounds like you have a good handle on your usage patterns: many short calls, few long calls.

TrueMove H have this Comfortable SIM, which offers quite low cost on-net calling, at least until 28 Feb. 2014:

http://truemoveh.truecorp.co.th/3g/sim-truemoveh/prepaid/entry/2378?ln=en

http://www.thaimobilecenter.com/promotion/Promotion_TrueMove%20H.asp