Instruction manual

Page 1304 of 3156 Direct Inward System Access
553-3001-306 Standard 10.00 January 2002
Call Detail Recording
If the customer and trunk route on which the incoming DISA call is being
made have the applicable Call Detail Recording (CDR) options in effect,
particulars of the call are recorded when it is established. There is no special
indication on the CDR record that this was a DISA call. If the incoming trunk
route is not specified for CDR options, recording depends on what has been
specified by the customer for any outgoing trunks seized by the DISA caller.
China Number 1 Signaling - Called Party Control
If an external station is allowed access to the trunk on which a Special Service
resides via Direct Inward System Access (DISA), the station may also access
that Special Service. However, Called Party Control is not supported.
Digital Private Network Signaling System (DPNSS1)/Digital
Access Signaling System (DASS2) Uniform Dialing Plan (UDP)
Interworking
DISA is not supported in a DPNSS1 UDP network.
Electronic Lock Network Wide/Electronic Lock on Private Lines
The Electronic Lock feature cannot be activated or deactivated when
accessing the node through DISA.
Generic XFCOT Software Support
This feature allows selected external users to access the Meridian 1 switch by
dialing a special directory number, and to use some features of the system as
an internal station.
A Direct Inward System Access (DISA) call is allowed on a disconnect
supervised or unsupervised loopstart trunk. If a caller on an unsupervised
loopstart trunk disconnects during a DISA operation, it is detected by a dial
time out or when the call is answered.
Caller disconnection during a DISA operation is detected by a disconnect-
supervised loopstart trunk on an XFCOT card and the operation can then be
ended.
ISDN QSIG/EuroISDN Call Completion
Call Completion on Busy Subscriber (CCBS) and Call Completion No
Response (CCNR) are not supported on Direct Inward System Access
(DISA) calls when the call destination is busy.