Patton electronic 4110 사용자 설명서

Applications for SmartNode 4520 Series

SmartNode 4520 & 4110 Series User Manual 

The gateways can be used to provide toll bypass over an IP WAN (see 

). The call routing in this case is 

provided by the PBX systems. A call routed to the FXS gateway can be relayed on a port-to-port basis or 
depending on the dialed-number to the remote gateway.

With the use of FXS ports, extension dialing on the secondary side must be 
done by using two-stage dialing (DTMF relay) or a call attendant. DID is not 
available when using a SmartNode FXS port connected to a PBX FXO port.

Figure 13. Toll bypass

SmartNode 4520 Series devices have dual 10/100Base-T Ethernet ports. The two Ethernet ports provide full 
featured IP routing between LAN and WAN plus Ethernet and IP layer QoS services. Voice prioritization and 
traffic management avoid network congestion and provide optimal voice quality. With these additional fea-
tures the SmartNode 4520 series can add Internet access and data networking to any of the SmartNode 4110 
Series applications described previously. The following sections show some typical combined voice-
data applications.