ZyXEL Communications IP PBX X6004 - Manual (Page 274)

Chapter 18 Outbound Line Group
X6004 User’s Guide
274
18.1.1 What You Can Do in this Chapter
Use the Outbound Line Group screen to configure settings for your outbound
lines including FXO, PRI, BRI, SIP, Trusted Peer trunks. See
Section 18.2 on page
278 .
18.1.2 What You Need to Know
The following terms and concepts may help you as you read through the chapter.
Outbound Trunk
The outbound lines define a connection between the X6004 and the PSTN, ISDN,
ITSP or your trusted peer (another X6004). To make calls from extensions on your
network you still have to define LCRs, which are outbound dialing rules (See
Chapter 20 on page 323 ). You also have to configure an auto-attendant to handle
the forwarding of incoming calls (See Chapter 19 on page 307 ).
FXO Trunk
FXO trunks allow you to connect to the PSTN (through your traditional analog
telephone service provider) or a traditional analog PBX in your organization.
PRI Trunk
PRI trunk allows you to connect to the ISDN (through your ISDN telephone service
provider) or an ISDN PBX in your organization.
BRI Trunk
BRI trunks allow you to connect to the ISDN or an ISDN PBX in your organization.
SIP Trunk
SIP trunks allow you to connect to a VoIP service provider.
Trusted Peer Trunk
Trusted peers refer to connections to another SIP server (for example another
X6004) that has configured your X6004 as a trusted peer. Your organization may
want to use trusted peer connections between remote branch offices.