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As everybody knows, FXO interface
of VoIP devices is suitable for connecting to the PSTN-PBX
in order to expand the amounts of extensions. The Vigor VoIP
routers with FXS interface also provide useful ways to implement
the similar utilization. The following are two typical application
scenarios.
Case1. Calls from VoIP to extension.
1. David dials the VoIP number of Vigor2900V(A).
2. After connection success, presses Linda's extension 610.
Case2. Calls from extension to VoIP.
1. Linda presses prefix number (e.g. "7" ) firstly to choose exterior line - FXS of Vigor2900V(A).
2. Then dials David's VoIP number of Vigor2900V(B).
Note : PSTN-PBX is widely adopted by most AnnexA countries.
Because most AnnexB countries such as Germany, Norway and
the Netherlands have encouraged small offices to deploy ISDN
PRI into PBX, PRI PBX are quite popular at offices located
in Germany, the Netherlands and Norway.
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Page last modified : 13 October 2008 |