Patton electronic 4110 사용자 설명서

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Applications for SmartNode 4110 Series
22
SmartNode 4520 & 4110 Series User Manual 
2 • Applications overview
Application—Analog line extension over IP
A virtual analog line can be created using an FXO and FXS model (see 
). The complete signaling and 
media (voice, fax, or modem) of the analog phone line is extended over IP. This enables a PBX analog exten-
sion line to be extended to a home office or satellite office. The analog line extension relays DTMF, hook-flash 
and CLI to provide full PBX feature access over the IP network (checking voice mail or joining a calling group, 
for example).
Figure 9. Analog line extension
Application—ITSP dial-in access
An ITSP can use the SmartNode FXO gateways as dial-in access points to his Internet telephony services (see 
). A user calls a local number, the FXO SmartNode picks up the call and uses a second dial-tone to 
dial the remote number. The system can be enhanced with a central call control server providing IVR 
announcements, PIN checking, and accounting for the calls.
Figure 10. ITSP dial-in access
Console
VoIP
 Gateway Router
ToIP
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Access Device
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