Specifications
System Features
INTER-TEL
®
CS-5200/5400 ADMINISTRATOR GUIDE, ISSUE 1.0 – April 2005
Page 132 Day and Night Modes
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When configured with an MGCP Gateway, you can program the system so that when 911 is
dialed from an IP device, the calling name and number associated with the IP device, not the
system, is sent to the 911/999 operators. See the latest version of the IP Devices Installation
Manual (part number 835.2195) for details.
Day and Night Modes
There are separate lists in the database for class-of-service, outgoing-access, allowed-answer,
and ring-in assignments for day and night modes. When an administrator enters the Night Ring
feature code, the system uses the night mode lists. When the system is in day mode, the day
lists are used. (Active calls are not affected when the mode is changed.)
Administrators can place any or all remote nodes into night mode or day mode. The default
feature code for Enable Network Night is 9861. The default feature code for Disable Network
Night is 9862.
Direct Inward System Access (DISA)
DISA is a programmable feature that allows an outside party to dial into the system from an
external DTMF endpoint and then dial extension numbers, hunt group pilot numbers, and off-
node device extensions. DISA callers do not have access to outgoing trunks or page zones.
Any of the trunk groups can be programmed to receive incoming DISA calls in day and/or
night mode. When not in use for DISA, the trunk group can be used for placing outgoing calls
by endpoints with outgoing access permission.
NOTE
The MGCP gateway is intended to connect to the PSTN. Connecting the MGCP
gateway to single line ports on other telephone systems is currently not sup-
ported.
CAUTION
Emergency Number Must Be Connected Correctly to Work Effectively. If an IP or SIP
device user dials 911, or 999 in Europe, from a remote location and an MGCP gateway is
not present and configured properly, the call will be placed from where the telephone system
is located. Because 911/999 services use Caller ID to help locate the caller, emergency
service could be misdirected or delayed. Also, the 911/999 service contacted may be local to
the system, but not to the IP or SIP device. All IP and SIP device users should be alerted to
this situation and instructed to use a local telephone line for placing emergency calls if an
MGCP gateway is not present and/or functioning properly. Also note that IP and SIP devices
will not function in the event of a power failure at either the local site or the system location.
Inter-Tel will not be held responsible for any problems resulting from an unavailable line that
is connected to the MGCP gateway. Inter-Tel also recommends that users regularly test the
MGCP gateway for dial tone.
NOTE
The Night Ring On/Off feature code (9860) affects only the node on which the
administrator resides. See page 11 for a complete explanation of administrator
features.
NOTE
Due to the natural characteristics of the trunk, the volume level of DTMF tones
transmitted over the trunk may be substantially reduced before reaching the sys-
tem. This natural degradation in tone volume may adversely affect the reliability
of the DISA feature. Other factors which can affect DISA performance are trunk
noise and the quality and strength of the DTMF tones generated by the off-pre-
mises endpoint itself. If the system cannot recognize a DTMF digit, the call is
automatically sent to the primary Attendant.