Instruction manual

System Features
INTER-TEL
®
5000 ADMINISTRATOR GUIDE – Issue 2.3, September 2007
Page 150 Day and Night Modes
Day and Night Modes
Separate lists appear 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.
System 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.
The Night Ring On/Off feature code (9860) affects only the node on which the administrator
resides. For a complete explanation of system administrator features, see “System Administra-
tor Procedures” on page 27.
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.
When a DISA user calls an extension number, the call rings as a direct ring-in call, even if the
called endpoint is busy or in Do-Not-Disturb. The DISA caller hears music or ringing (deter-
mined by a system-wide option in DB Programming) until the Transfer Available or Transfer
Busy timer expires. Then, if the call is not answered, it recalls the called endpoint’s attendant.
If the called endpoint is forwarded, the call follows the programmed forwarding path.
When a hunt group pilot number receives a call through DISA, the call rings or circulates
according to how the hunt group is programmed (i.e., linear or distributed).
If a caller dials a valid hunt group pilot number that has no members assigned to it, the call
automatically rings at the primary attendant endpoint until the Abandoned Call timer expires.
If the call is not answered before the Abandoned Call timer expires, the call is disconnected.
Security Codes
DISA trunks can be assigned security codes (up to eight digits in length) that are required for
access to the system. The installer can program separate codes for each DISA trunk group to be
used during day and/or night modes. To prevent unauthorized access to the outgoing trunks, all
trunk groups using DISA should have a security code.
The database programmer can determine the number of times that a caller may unsuccessfully
attempt to enter a security code and/or dial an extension number. If the user does not succeed
within the determined number of attempts, the call will be disconnected (if the security code is
invalid) or transferred to the primary attendant (if the extension number is invalid).
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 auto-
matically sent to the primary attendant.