H3C Technologies H3C Intelligent Management Center - Manual (Page 10)

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1 VoIP Overview
A VoIP network mainly provides the voice and video transmission on an IP network in place of traditional
telecommunication networks.
Many enterprises have deployed VoIP networks to access services such as video conferencing,
teleconferencing, voice mail, IP telephony, and fax. The following factors account for the increased
deployment of VoIP networks:
• Mature analog-to-digital and digital-to-analog conversion technologies.
• Enhanced voice and video transmission control protocols.
• Improved VoIP QoS.
Figure 1 shows an enterprise-class VoIP network.
Figure 1 Enterprise-class VoIP network
Functions of VSM
Voice Service Manager is a management software to centrally manage voice devices on enterprise-class
VoIP networks. VSM offers improved ease of use of products and reduced system maintenance costs by
allowing you to perform the following functions:
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Voice
Gateway
VoIP Service
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VoIP Service
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VoIP Service
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Gateway
Voice
Gateway