Pbx Connections - 3Com 3C10402B Administrator's Manual

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PPENDIX ONNE

PBX Connections

X H.323 G
TIONS ATEWAY
4 Enter the number to which you want to forward the call and click OK.
The caller is now ready to use NetMeeting to place an H.323 to the
system at the office. Configure NetMeeting with the IP address of the
ConneXtions gateway as the gateway in Advanced Calling options. Dial
the extension to place the call.
The call passes through the Auto Attendant to your extension and
forwards the call to your previously specified number.
After the call, return to NetSet and remove the forwarded number so that
work-related calls to your extension are not forwarded to your home, or
to wherever you placed your last H.323 call.
H.323 gateways allow NBX systems to establish IP connections to other
H.323-equipped PBX systems as well as to similarly equipped NBX
systems. Although H.323 standards describe a universally accepted
interface for interconnecting similar systems, each of the 20 or 30 PBX
manufacturers brings its own PBX solution to the marketplace. The
diversity of products and release levels that are associated with each
manufacturer increase this complexity further. Because any
implementation differences can affect connectivity, this manual can only
offer guidelines for connecting NBX and PBX systems.
Tie-line connections between NBX and PBX systems require technical
people from both ends of the connection to collaborate in these major
areas, discussed next:
H.323 Interoperability
■
IP Addressing
■
Voice Ports
■
Extension Dial Plans
■
Extension Delay
■
H.323 Interoperability
H.323 protocol stacks provide the foundation for H.323 compatibility.
Each consists of a collection of engineered software products that
implements the H.323 standard. Although PBX manufacturers can
develop their own H.323 software stacks, it is more efficient to purchase
software licenses from a company that specializes in developing H.323
protocol stacks.