If they have, then you can carry out Whatsapp number database video calls over a Wi-Fi network, so you can not only hear them but also see them in real-time. This app is especially useful if you are contacting someone overseas, as you can avoid the Whatsapp number database notoriously high call charges associated with calling a foreign number on a telephone. Because it is free, this app comes highly recommended. WhatsApp This is an app that allows you to send and receive Whatsapp number database SMS and MMS messages for free.
Most iPhone 4S tariffs have an allowance of Whatsapp number database free messages included, but if you go over this allowance, an app like WhatsApp can be very useful. Because the app uses a 3G or Wi-Fi connection, messages incur no charges (although data Whatsapp number database charges may apply when using 3G in certain situations. To be sure, use Wi-Fi whenever possible). This app costs £0.69 from the AppStore and I think this is a very good value as Whatsapp number database you can use it to send an unlimited number of text messages and media messages.
You can only send messages using this app if your intended recipient also has WhatsApp installed on their phone. WhatsApp is also available for other operating systems like Android, so can also be used on phones like the Samsung Galaxy S2, for Whatsapp number database example. As you can see, there are more options for communication on the iPhone 4S than the standard phone and message features. If you use apps like those outlined Whatsapp number database above wisely, you can significantly reduce your monthly phone bill. These kinds of apps are great for those who have lower allowances on their tariff or who use a Pay Whatsapp number database As You Go plan.