Learn about Voice over Internet Protocol (VoIP) or IP Telephony, which uses the IP network to send voice data in packets. VoIP offers cost savings and is the future of the telephone industry.
- [Narrator] Have you ever wondered what happens…when you pick up the phone to make a call?…What happens depends.…If you use a traditional landline,…you'll use the public switched telephone network.…If you use a cell phone, you'll use a cell tower.…However, most likely,…you are using Voice over IP, or VoIP.…VoIP is changing the way we communicate.…
Voice over IP or IP telephony…uses the existing internet…and network to transfer and route…voice traffic in IP packets.…In many cases, it's part of a unified communications system.…VoIP has been in use for over 20 years.…However, in the last 10 years,…we've seen astonishing growth in Voice over IP.…The Voice over IP market is rapidly expanding…all over the world…in terms of subscribers, growth, and traffic.…
Consumers and businesses are cutting the cord…as more and more traffic uses VoIP than the traditional…public switched telephone network.…Studies show that 60% of the households in the US and Europe…are replacing traditional landlines from the phone company…with Voice over IP.…
Lisa Bock compares the traditional Public Switched Telephone Network (PSTN) to VoIP, and discusses the framework and components necessary for VoIP to be possible. She reviews codecs, including characteristics such as bitrate and voice quality; protocols for setup, communication control, and data transport; and media gateways, signaling protocols, and intermediary systems such as translators and mixers. Lisa then reviews business integration and the importance of conducting a needs analysis and network assessment prior to implementation. Learn about the many value-added services UC can provide, such as integrating VoIP with email, billing, management software, and other customer management systems. Lisa wraps up with a discussion on how ensuring quality of service (QoS) in a VoIP network minimizes latency and jitter and the importance of VoIP security to prevent malware, impersonation, hijacking, and denial of service attacks.
- History and evolution of PSTN
- UC overview and components
- Gateways, including signaling gateways, translators, and mixers
- Integrating VoIP and UC into your business network