st audio and video conferencing. Acceptance accelerated when Microsoft bought Skype as a replacement to its Linc VoIP offering. Microsoft's Skype for Business, renamed Microsoft Teams, includes a server through which all messages between employees within the same building and in buildings connected to the enterprise's network are sent. The server scans packets for malicious transmissions. These servers are now typically located in the cloud. Because VoIP calls are essentially data within packets, telephone and cable TV providers began rolling out VoIP service to both their enterprise and residential customers. Providers that deploy VoIP in their networks use up less capacity for voice because VoIP packets are transmitted as data along the same part of networks as data traffic. This results in more room for data. In addition, VoIP switches and servers are less costly to purchase and maintain because the software is installed on commodity servers that take up less space than traditional switches used to transmit voice based on time division multiplexing (TDM). TDM uses more capacity than VoIP because capacity is saved in each time slot even when there are pauses in traffic. This wastes capacity. Many providers are eliminating their TDM services both because its capacity is too low and it is not efficient for data traffic. They are replacing TDM www.TechnicalPDF.com with Carrier Ethernet. See below for Carrier Ethernet and the "Appendix" for TDM. VolP for Very Small Organizations Very small organizations and start-ups with fewer than 25 employees often use services from companies such as Google, Skype, and Vonage that have been adapted for business to replace traditional, on-site telephone systems. For example, features might include the ability to transfer calls to another employee in the same facility or in a remote office. The features provided also include a fixed, single phone number for mobile devices, work phones, and home phones, with a single voicemail box for messages from these three types of devices. It 