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
figure 9
). The complete signaling and
media (voice, fax, or modem) of the analog phone line is extended over IP. This enables a PBX analog extension
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).
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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
figure 10
). 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 announce-
ments, PIN checking, and accounting for the calls.
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Figure 10. ITSP dial-in access
Summary of Contents for SmartNode 4520 Series
Page 47: ...47 Chapter 5 LEDs status and monitoring Chapter contents Status LEDs 48...
Page 74: ...74 Appendix E SmartNode 4110 Series factory configuration Chapter contents Introduction 75...
Page 76: ...76 Appendix F SmartNode 4520 Series factory configuration Chapter contents Introduction 77...
Page 78: ...78 Appendix G Installation checklist Chapter contents Introduction 79...
