BELGACOM Forum 523, Mounting And Commissioning Manual

Page: 13 / 244

11
Features
Telephony
The Forum 523/524 communications system is designed to be
connected to an ISDN-basic access using the DSS1 protocol or to
be connected using Internet telephony according to RFC 3261 via
a SIP provider. System access (point-to-point) and multi-terminal
access (point-to-multipoint) are both supported. All types of
access can be configured in parallel. Forum 523/524 complies
with legal regulations governing telecommunications equipment
and fulfils the DSS1protocol.
From its smallest version, Forum 523/524 provides the following
connection options on its basic module:
z
1 external S
0
port, provided as an RJ45 socket
z
1 switchable S
0
port, provided as an RJ45 socket (external)
and as a 4-pin pressure terminal (internal)
z
3 DECT-enabled U
pn
-connections for system telephones or
DECT base stations (pressure terminals)
z
4 a/b-connections for analogue devices (pressure terminals)
z
Forum 523/524 can be expanded using an appropriate
interface card to 4 S
0
connections, 8 U
pn
connections or 8 a/b
connections. You will find an overview of the cards available in
the section
Interface Cards starting on page 40.
You can connect the following devices to Forum 523/524:
z
analogue terminals to a/b ports
z
Euro ISDN terminals in accordance with DSS1to internal S
0
ports
z
Belgacom system telephones Forum Phone 515,
Forum Phone 525, Forum Phone 535 and Belgacom system
telephones Forum Phone 520, Forum Phone 530 to U
pn
ports
z
VoIP system telephones Forum IPhone 525 and
Forum IPhone 535 as well as Forum IPhone 520 and
Forum IPhone 530, can be connected using LAN and an
additional Media Gateway card.
z
Base stations for DECT mobile phones to DECT-enabled U
pn
ports