Patton SmartNode 4900, Руководство пользователя

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Introduction 22
SmartNode 4900 User Manual 2 • Applications overview
Introduction
Patton's SmartNode 4900 Series deliver the features you need for advanced multiservice voice and data net-
working. SmartNode 4900 Series combine high-quality voice-over-IP with powerful quality of service routing
features to deliver seamlessly integrated VoIP and data access over synchronous serial leased lines. This chapter
describes typical applications for which the SmartNode 4900 Series series is uniquely suited.
Note Detailed configuration information for SmartNode applications can
be found online at
www.patton.com/smartnode .
SmartNode 4900 Series applications
SmartNode 4900 Series devices have dual 10/100Base-T Ethernet ports and a single V.35 or X.21 sync-serial
port. The two Ethernet ports provide full featured IP routing plus Ethernet and IP layer QoS services. The
sync-serial port provides WAN access for integrated voice and data via a leased-line connection to the network.
Voice prioritization and traffic management avoid network congestion and provide optimal voice quality. The
following sections show two typical converged voice-and-data applications.
Multiservice carrier access over leased lines
The SN4900 Series enables service providers to use Frame-Relay or PPP sync-serial access lines to offer Inter-
net and VPN services integrated with voice services for up to 32 analog telephone lines (see
figure 4 ). The dual
10/100Base-TX LAN ports can be used for LAN connectivity and a dedicated VPN and DMZ connection.
The FXS ports connect to PBXs, key-systems or handsets while the FXS ports can be used for local breakout or
fallback to the PSTN.
Figure 4. Multiservice carrier access over leased lines application