According to Wiki:
Communication is the process of generation, transmission, or reception of messages to oneself or another entity, usually via a mutually understood set of signs.
Technology is the usage and knowledge of tools, techniques, crafts, systems or methods of organization.
Information and communications technologies - The terms ICT should be read as "Information Technology and Communication Technology" literally to clarify its meaning which refers to the merging (convergence) of telephone networks with computer networks through a single cabling or link system. The term ICT has grown in usage out of huge economic incentives (huge cost saving due by eliminating the telephone network) to merge the telephone network with the computer network system. See VOIP. This in turn has spurred an industry to grow with organizations using the term ICT in their names to indicate their specialization in the process of merging the two network systems together.
So any tool, technique, craft, system or method of organization used to generate, transmit, or receive messages to oneself or another entity is "communication technology."
Cell phones
VOIP
computers - email, chat, message boards, etc.
telephones
etc.