Remote Access On Loop Start And E&M Trunks; Remote Access On A Private Network - Nortel Modular ICS 6.0 Installer's Manual

82 / Remote system access
Remote access on loop start and E&M trunks
Loop start trunks provide remote access to Norstar from the
public network. E&M trunks provide remote access from a
private network. Each must be configured to be auto-answer to
provide remote system access.
A loop start trunk must have disconnect supervision if it is to
operate in auto-answer mode. E&M trunks always operate in
disconnect supervised mode.
When a caller dials into the system on a line that has auto-
answer, the system answers with system dial tone and no COS
password is required. In this case, control over the system
capabilities available to the caller is provided only by the
restriction filters assigned to the line.
When a caller dials in on a line that has auto-answer with
DISA, the system answers with stuttered dial tone. This is the
prompt to enter a COS password. The password used by the
caller determines which system capabilities are available to
the caller.

Remote access on a private network

Nodes on the private network deliver the last dialed digits to
the destination Norstar node, for interpretation by the
destination Norstar node. The destination Norstar node either
matches the digits to a target line or interprets the digits as a
remote feature request. The call is either routed to the specified
target line, or the remote feature is activated.
By default, E&M trunks are set to answer with DISA. For
auto-answer E&M trunks connected to a private network,
change the default so that the trunks are not answered with
DISA. If an auto-answer E&M trunk is configured to answer
with DISA, the system tries to interpret any received digits as
a COS password.
Modular ICS 6.0 Installer Guide P0992638 03