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Applications for SmartNode 4520 Series 26
SmartNode 4520 & 4110 Series User Manual 2 • Applications overview
Application—Single-phone PSTN and VoIP access
The SmartNode 4520 Series with a combination of FXS and FX
O ports can be used to make and receive calls
via PSTN and Internet calling services over the same telephone handset (see figure 15). Using individually con-
figurable routing tables, an outbound call can be directe
d to the local PSTN connection or to an Internet tele-
phony service provider (ISTP). Inbound calls from the I
nternet and the PSTN can ring the same phone.
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Figure 15. Single-phone access