1. There are no facilities.2. the communication lag.3. not to send the message.4. There are several phones, for example, send a news photo of surfing the Internet.
1. There are no facilities to communicate with each delay 2. 3. not easy to send messages to each other. 4. Send camera phones do many things such as surfing the Internet.
1. No facilities 2. Communication delay 3. Not easy to send a message to each other 4. Phone can do many things, such as sending messages. Photos of surfing the Internet.