This document provides an overview of various communication services that are helpful for businesses. It discusses postal services which include financial facilities like savings schemes and mail facilities like parcel and registered mail services. It also outlines telecom services like cellular networks that provide voice, data and messaging, radio paging, fixed landlines, cable networks, VSAT satellite systems, and direct-to-home satellite TV (DTH). These services help businesses establish external links for sharing information and ideas in an efficient, accurate and fast manner required in today's competitive global environment.