Siemens HiPath 1120, Programming Manual

Page: 116 / 180

Step by Step
Programming a Digital Trunk
116
Programming a Digital Trunk
HiPath 1100 systems can be equipped with digital
trunks by installing a S
0
(ISDN access) and a TME1 (E1
CAS access) module.
S
0
Module
Each ISDN access provides two communications
channels (64 kbps each)as well a capability for sharing
applications such as video conferencing or Internet
access. Depending on your carrier, some facilities may
be provided, including Caller ID, Caller ID Blocking,
Direct Dialing to Extensions. The HiPath 1120 can be
equipped with a 2-port module; the HiPath 1130/1150
with a 2-port module or one 5-port module; and the
HiPath 1190 with two 2- or 5-port modules.
When you only have digital ISDN lines to use, the
settings for DID Prefix, External Number Phonebook,
Country Code, and Area Code must be configured.
When the Fax/DID module is busy answering
calls, it means that it is playing one of the 12 pro-
grammed messages or waiting for the user to
press a key (in the case of a DID). If the Fax/DID
module has answered a call and forwarded it to
an extension (the call is ringing somewhere), that
call is no longer considered one of the four calls
that is being answered by the Fax/DID module
keeping it busy. In summary, once the Fax/DID
module has forwarded a call to an extension, the
channel is available for another call.