YES
Your phone is probably an iPhone that is dis-acativated, in other word's you have no internet. You can still "jailbreak" it by removing you SIM card and "jailbreak" it on another iPhone that DOES and internet and just re-insert the SIM.
Yes, I am using airtel Rs. 98 plan. it works fine but gprs signal lost is very fast.
Orange 3g is a network that is used to provide phone and internet in the UK. The SIM card you are going to need will vary with the phone you are using. Orange offers SIM cards with min plans for about $25. This price is for the SIM card used in the iPhone. If you have an iPhone 4 Orange also offers their micro SIM, which is smaller than a standard SIM for the same price
what is airtel sim network hang trick
You can use the same SIM card for your iPhone 6 that you used in your iPhone 5.
Of course, the iPhone 3G and/or the original iPhone will take any normal sim card; the 3G iPhone will take the 3G sim as well.
In some situations, the status bar on your iPhone might display No SIM, even though your iPhone has a SIM card.
No sim cards are only for numbers
No
No. And if you use the "internet" you will be charged per byte used. You will need to call ATT and select a data plan.
You can fit a SIM card from your HTC Wildfire to an iPhone 4 by using the SIM port included in the iPhone.
The iphone 4 comes with a micro sim. Your normal sim will not work with it. My AT&T dealer says he can transfer data directly from your sim/old phone to your new iphone 4.