Remote system access /
101
N0130943 02
Modular ICS 7.1 Installer Guide
The DISA DN and the Auto DN allow auto-answer private
network and DID calls, in the same way that calls on
auto-answer loop start and auto-answer E&M trunks can be
answered, with or without DISA. These DNs are described in
System prgming
under
Access codes
.
Remote access on Direct Inward Dial (DID) trunks
Remote system access on DID trunks is similar to that of E&M
trunks connected to a private network.
The main differences are:
•
a remote caller is on the public network dialing standard
local or long-distance telephone numbers
•
the digits received are delivered by the central office
•
DISA cannot be administered to a DID trunk
As with a private network, the dialed digits may be
programmed to match those of a specific target line DN, the
DISA DN or the Auto DN.
Remote access on PRI trunks
Remote system access on PRI trunks is similar to that of E&M
trunks connected to a private network.
The main differences are:
•
a remote caller is on the public network dialing standard
local or long-distance telephone numbers
•
the digits received are delivered by the central office
•
answer with DISA cannot be administered to a PRI trunk
since PRI trunks are set to autoanswer.
As with a private network, the dialed digits may be
programmed to match those of a specific target line DN, the
DISA DN, or the Auto DN.
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Страница 108: ...108 Controlling system access Modular ICS 7 1 Installer Guide N0130943 02...
Страница 192: ...192 ETSI MCDN and Network features Modular ICS 7 1 Installer Guide N0130943 02...
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