celluar modules :s which one

Hellow every one,

I have been doing my research into the avalible celluar modules. I have found three that are main contenders. Two that will defo work but are pricey but the other dirt cheap but a bit of a risk.

Now i was just woundering if any one of you peps out there has had any exsperiance of any of the below celluar modules especially the tc35(ebay one)

GPRS Quadband Module for Arduino = Cooking-Hacks = http://www.cooking-hacks.com/index.php/arduino-gprs-module.html

Cellular Shield with SM5100B = SparkFun = http://www.sparkfun.com/products/9607

GSM SIEMENS TC35 SMS = Ebay Plent People selling these = http://www.ebay.co.uk/itm/GSM-SIEMENS-TC35-SMS-Wireless-Module-UART-232-/200524455404?_trksid=p4340.m8&_trkparms=algo%3DMW%26its%3DC%26itu%3DUCC%26otn%3D6%26ps%3D63%26clkid%3D1866769948163462225&_qi=RTM925181

I really just want to know if the ebay one is all that it seems tbh lol i mean it is cheap lol ]:D But are there any problems with it etc

What i want to do is to be able to ring people and to be able to send text messages etc

Thanks everyone Great Help!!!

Don't have hands on experience, but looks like TC35 offer only SMS capability, so you wouldn't be ble to place a GSM call or establish GPRS data session. It's clear that first one is for data only, than again not what you want. Only SparkFun claim "everything included" - so some feature that you even don't need, like GPRS. I think right choice for you is to buy an old Nokia GSM phone, it's cheap and easy to integrate with arduino via serial link.

ummm intresting i have seen a tut some where on using a nokia phone

with the nokia phone i can intergrate that like you said and from that i can make calls (convosations)and send text messages and recive text messages etc yes?

Thanks alot man That is prob the cheapest way I like cheap lol :)

Yes, and it is a phone, not shield, you can unplug it and use it directly. Search for Atmel application note AVR323 to start with. Have fun!

yep i under stand that lol

thanks man ill report back with any progress

if any 1 knows of a gd tut on this please feel free to post it up