About Voice Over Ip (Voip) - 3Com PathBuilder S200 Series Manual

About Voice over IP (VoIP)

About Voice over IP (VoIP)
What is VoIP?
VoIP Applications
Features
Product Support
2
PathBuilder S200 series switch products support Voice over IP (VoIP) to provide
termination and encapsulation of voice and fax traffic for transport over an IP
network (see to Figure 1). 3Com's proprietary protocol, Serial Protocol over TCP
(SoTCP), provides the encapsulation mechanism for carrying voice traffic over an IP
network.
Fax
IP Network
Figure 1. Voice over IP Network
VoIP provides new and cost effective solutions for a company's telephony
communication including:
• Long distance calling over an Intranet or the Internet
• Remote location dial-in and telecommuting
Key features include:
• real-time voice and fax over IP networks
• multiple SVCs over a single UDP session
• call management and signalling using TCP
These PathBuilder S200 series switches support VoIP:
• PathBuilder S21x switch
• PathBuilder S24x, 26x, and 27x switch
Fax
PBX
Fax
modem
Voice Over IP