Chapter 8: Vcx V7111 Ip<->Pbx T; A Calling B Scenario (Automatic Dialing Set In The Ini File); B Calling A Scenario (One-Stage Dialing Set In The Ini File); Analog Line Interconnect Via The Ip Network - 3Com VCX v7111 Installation Manual

C 8: VCX V7111 IP<->PBX T
HAPTER
E
XAMPLE

Analog Line Interconnect via the IP Network

Figure 32 shows 3Coms' 4FXO mediating between the PBX/PSTN world and the IP network.
A is an enterprise User in Europe with its own PBX and 3Coms' 4FXO connected to analog
lines. B is a SOHO (Small Office, Home Office) user in the USA, without a PBX, but with
3Coms' 4FXS connected to the phones.

A calling B scenario (automatic dialing set in the ini file)

User A off-hooks the phone, hears the enterprise PBX's dial tone, and dials User B's phone
number 4133; the call is routed to the analog line connected to the 4FXO which routes it to
the 4FXS that maps it to the phone of User B.

B calling A scenario (one-stage dialing set in the ini file)

User B off hooks the phone, hears the 4FXS device's dial tone, and dials 4247.
The 4FXS device routes the call to the 4FXO which dials it to the enterprise's PBX, which
routes it to User A's extension.
3Com VCX V7111 Fast Track Installation Guide
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