Quintum Tenor AX Product Manual - page 17

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Chapter 1: Overview

Tenor AX Call Paths  

Tenor AXM MultiPath Switch (AXM0800, AXM1600, AXM2400) Configuration

The Tenor AX VoIP MultiPath Switch Configuration is symmetrical with an equal number of 

Phone/FXS and Line/FXO ports. Calls are routed from the Phone/FXS, Line/FXO, or IP Network. 

Calls can be routed in any direction between any of the ports.

Below are descriptions of the basic call paths from the FXS (Phone), FXO (Line) and IP; the exact 

call path will be determined by the specific Tenor AX configuration you have in your network.

FXS (Phone) Originated Calls. Calls coming from the Phone/FXS interface (i.e.PBX) may be 

switched to either the data network as a VoIP call or to the FXO interface, typically for connection to 

another circuit switched network such as the PSTN. The routing decision made by the Tenor AX is 

based upon your configuration and the dialed number. See Figure 1-4 for an example of a call origi-

nated from a PBX.

Figure 1-4 FXS (Phone) Originated Calls

FXO (Line) Originated Calls. A call coming from a Line/FXO interface may be switched to either 

the data network as a VoIP call, a Line Circuit, or trunk typically for connection to a termination 

device on the user’s premises such as a PBX. The routing decision made by the Tenor AX is based 

upon your configuration and the dialed number. See Figure 1-5 for an example of a call originated 

from the PSTN. 

Figure 1-5 FXO (Line) Originated Calls

Keyswitch

Phone

PBX

PSTN

IP Network

OR

FXS Port

FXO Port

Keyswitch

Phone

PBX

PSTN

FXS Port

FXO Port

IP Network

OR