Terms and definitions in messaging

Multichannel messaging service is based on a variety of telecommunication and Internet technologies. In the description of services, we often use abbreviations that may not always be known to you. Here we have compiled a glossary of terms and definitions used in the industry.

Quality of Service (QoS)

A measure of how reliable a carrier’s service is. Usually expressed in terms of availability and measured, as how often available, by .99999 or five nines, which is the top level of reliability.