Basic telecommunication services fall into: Teleservices Bearer Services 1. Teleservices Teleservices enable subscribers to communicate with each other. Teleservices consist of speech services, short message services, and fax services. I. Speech Services Speech services consist of telephony calls and emergency calls. Telephony calls Telephony calls enable mobile subscribers to communicate with PSTN subscribers, ISDN subscribers, [...]
Technology Beyond
All about Computer, Technology, Information, and Communication
