Does SMS chat use traffic?

Sending text messages will not generate traffic. If the inserted picture or short message is too long, the short message will be replaced by MMS.

Sending MMS will generate traffic, and receive or send MMS through GPRS network.

MMS mobile phones receive or send traffic free of charge and will not be included in the traffic package or monthly rent.

When the network sends SMS or MMS through the network, it will generate traffic, which is included in the traffic package or monthly rent.