Quintum Technologies Tenor Call Relay 60 - Manual (Page 10)

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Chapter 1: Overview
What is Tenor
®
Call Relay 60?
The Call Relay 60 Session Border Controller is a stand-alone unit which acts as an inter-domain
VoIP portal used to directly connect (over IP) one or more VoIP networks, supporting up to 60
simultaneous calls between networks. Call Relay 60 provides a single point for call control manage-
ment, administrative services, call accounting, and security. All calls are switched through multiple
IP networks with just one single compression and decompression of the voice.
The unit connects with the IP network via 10/100 Mbps Ethernet connection; calls are transmitted
through the Ethernet LAN and routed over the corporate WAN or internet. It routes the call accord-
ing to the parameters or defaults you have configured in the routing database.
Call Relay 60 features NATAccess, an intelligent network address translation technology. This
enables a VoIP network with multiple H.323/SIP endpoints to operate behind firewalls equipped
with Network Access Translation (NAT). NATAccess solves the problems commonly experienced
when using H.323/SIP devices behind firewalls; it eliminates the need to place these endpoints in
the “DMZ” or public IP domain, or to open the firewall to the point where serious security concerns
are raised. Call Relay 60 enables enterprises to expand their VoIP networks to home offices, branch
offices, customers, partners, and across the public Internet.
Figure 1-1 Call Relay 60