Voice and Data Integration
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Voice-over-Internet-Protocol (VoIP)
Voice-over-Internet Protocol is loosely referred to as the actual transmission of voice, rather than the actual protocol implementing it. VoIP is also referred to as IP telephony, voice-over-broadband, and broadband telephony. VoIP is the family of technologies which allow packet-switched networks to be used for voice applications, such as telephony, voice instant messaging, and teleconferencing.
VoIP technology allows the corporate network engineer to simplify the network and potentially improve the telephony experience for users of the network. By combining both Voice and Data technologies into a single network companies can recognize significant cost savings, particularly in cases where the network capacity is underutilized. Depending on end-to-end implementation VoIP-to-VoIP phone calls are free, while VoIP calls connecting to public switched telephone networks may have a cost that is borne by the VoIP user. VoIP allows for the transmission of telephone calls (voice) over data networks (Internet, LAN's, WAN's, VPN's, Frame Relay, Internet)
VoIP enables technology convergence:
How does VoIP work?
- Converts voice traffic from Circuit to Packet format
- Treats all traffic as data:
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Packet Switching
- Connection opens to send small chunk of data - a Packet
- Each Packet has an address for network routing
- Computer reassembles into original digital data stream
- IP moves data from site to site
- TCP verifies correct delivery
TCP/IP
Advantages of VoIP over Traditional Telephony
- Lower cost of phone calls between multiple sites
- Ease of Moves, Adds, and Changes
- Use existing data network for voice, data, and video to produce potential cost savings
- Consolidation of all communications over one network
- Potentially less cabling
- New productivity driven applications
Customer Benefits
