Operating Parameters For Nas Using The Qsig Transport - Nortel Meridian Meridian 1 Feature Description And Administration

MCDN End to End Transparency Page 1207 of 1814
For further information about these NMS-MC and MNS-MM features, see
Meridian Link ISDN/AP General Guide (553-2901-100) or the NAS feature
description in this document.
Operating parameters
The Manufacturer Specific Information (MSI) carries the MCDN proprietary
information transparently over a QSIG network. The third-party node must
support the QSIG generic functional protocol (transport) and MSI.
Directory Number (DN) address translation requires the association with a
customer number, as configured using the CUST prompt in LD 15.
Either CDP or UDP is required but they may not be mixed together.
Digit manipulation is not supported for DN transported on QSIG.

Operating parameters for NAS using the QSIG transport

Attendant and users must be located on Meridian 1 nodes to obtain full NAS
capabilities.
For NAS Anti-Tromboning capability, both legs must be on the same
D-Channel. If the tromboning occurs with one MCDN trunk and one QSIG
trunk, the redundant legs are not removed because they are not associated
with the same D-Channel.
For a call established through International Standards Organization (ISO)
QSIG trunks, the transit counter information is not updated at a QSIG tandem
node because the message information is transparent; therefore, the transit
counter does not reflect exactly the number of transit nodes the call has gone
through.
NAS using the QSIG transport does not support Supervisory Console, Call
Park, Charge Account, Do-not disturb and Group Do-not disturb, Barge-in,
or Emergency Transfer.
There is no gateway developed between NAS functionalities using the QSIG
transport and the corresponding DPNSS services. At a QSIG/DPNSS
gateway, if NAS information is present, the NAS information is discarded.
International ISDN PRI Feature description and administration