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SN4120 overview 15
SmartNode 4120 User Manual 1 • General information
SN4120 overview
The SmartNode 4120 ISDN BRI VoIP Gateway converts up to four simultaneous phone or T.38 fax calls
from SIP to ISDN BRI. It is a compact reliable standalone VoIP gateway for IP-based voice systems that deliv-
ers ISDN performance and quality.
For system integrators looking to connect a VoIP or Unified Communication solution to public or private
ISDN lines, the SmartNode 4120 provides unparalleled ISDN to IP feature preservation. Like any SmartNode
the 4120 provides advanced ISDN functionality such as Explicit Call Transfer (ECT) support and Advice of
Charge (AOC) over SIP. Patton CPEs are interoperable with most IP PBX and Unified Communication ven-
dors such as Asterisk, 3CX, Elastix, Microsoft, IBM, Swyx, SNOM One and many others.
Compared to PC-based solutions
that combine IP PBX and a PCI
BRI cards, the SmartNode has sev-
eral advantages, including: installa-
tion without additional drivers or
software, operation without ventila-
tion or hard disk, scalable without
limitation, and service integration
without downtime. SmartNode
gateways can be combined in a clus-
ter for simple and flexible redun-
dancy solutions not available with
PCI BRI cards. System administrators don't have to learn ISDN as industry standard protocols like SIP do the
job of connecting the PSTN to your VoIP system.
The SN4120 performs the following major functions:
• Two/four channels of Voice or FAX-over-IP through one/two Euro-ISDN BRI/S
0
port
• Standards-compliant VoIP in accordance with SIP or H.323 protocols.
• 10/100Base-T Ethernet WAN port for connection to a router, xDSL, cable, or wireless modem.
• Euro-ISDN BRI/S0 port (TE orientation, one to two ports depending on the SN4120 model type)
SN4120 model codes
The SmartNode 4120 series consists of several models. They differ in the number of BRI ports and voice chan-
nels supported. All models come equipped with one 10/100/Base-Tx Ethernet port.
The SN4120 models are listed in table 2.
Table 2. SmartNode 4120 BRI Ports and Voice Channels
Model BRI TE port Voice Channels
SN4120/1BIS2V/EUI 1 2
SN4120/2BIS4V/EUI 2 4