ZyXEL Communications X6004 Manual Do Utilizador

X6004 User’s Guide

This chapter shows you how to manage outside lines on the X6004. 

The following diagram shows the X6004 connected to three possible types of outside 
connections: 

• FXO Trunk (A): shows the X6004 connected to the PSTN (Public Switched Telephone 

Network) via an FXO port on the X6004. You can also use the FXO ports to connect to a 
traditional PBX, if your organization has one. You must have an FXO interface card 
installed on the X6004 to configure these connections.

• SIP Trunk (B): shows the X6004 connected to a SIP server at your VoIP service provider. 

You can use the SIP trunk to connect to a SIP server on which you have an existing SIP 
account.

• Trusted Peer (C): shows the X6004 connected to another X6004 (for example, at your 

branch office). You can establish a trusted peer connection with another SIP server that 
lists your X6004 as a trusted peer. 

Figure 141   Outbound Line Overview 

The outbound lines define a connection between the X6004 and PSTN, ITSP or your trusted 
peer. To make calls from extensions on your network you still have to define LCRs, which are 
outbound dialing rules (See 

). You also have to configure an auto-

attendant to handle the forwarding of incoming calls (See 

).