Software Increment Release Notes
================================

Increment ID:   I27A1800
Date created:   08-16-2001


Title: TDM: In-progress calls drop into 1-way transmission
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Effect on Traffic / Warnings:
-----------------------------
Calls in progress will not be dropped.  Calls can not be originated for 
30 seconds while the TDM executes a warm restart.


Detailed Description of Increment:  
----------------------------------
This increment prevents in-progress calls from going into a 1-way
transmission state. It also includes a software change making the 
UE9000 more robust to interference from lightning.


System Configuration / Shelf Type Requirements:
-----------------------------------------------
This increment must be applied to all AN18.00 AccessNode configurations
and shelf types.  This increment affects UE9000 shelves.


Prerequisite Increments Required:
---------------------------------
Increments I01A1800 through I26A1800 must be successfully applied prior to 
application of this increment.


Loads Affected:
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After successful application of this patch, the TDM load will be:
ANTDM18BT


Special Instructions:
---------------------
**** PLEASE NOTE ****
No special application instructions.

Installation Instructions:
--------------------------
Please refer to the Incremental Software Delivery Users Guide for general 
installation instructions.  This document may be obtained from either the 
AccessWeb ISD web site (https://www23.nortelnetworks.com/ACCESS_OPTICAL/esd/),
where the AccessNode increments are located, or you may order it through your 
Nortel Account Manager or Order Manager.  The document number for the 
Incremental Software Delivery Users Guide is P0934362.


Test Instructions:
------------------
In-service Testing Not Required