2007 Remote Activation of Message Waiting - Expanded (Ameritech Region Specific)

Message Waiting Indicator Activation (Audible) - Expanded

When an end user subscribes to Voice Message/Reminder service the end user
should have the ability to forward calls to the Enhanced Service Provider's
voice messaging service, leave a detailed message for those who may be calling,
and have a recorded voice message left in response.  When messages are left 
for the end user, a message waiting indicator should be provided indicating a
message is waiting.  The ability to remotely activate message waiting 
indicator to end user's lines not located in the same central office, but in
the same Local Access Transport Area (LATA) as the ESP (Voice Message 
Provider), is made possible through the Common Channel Signaling System 7
(SS7) network.
 
Generic Name of ONA Service 	
	Product Name					BSE or CNS
============================================================================
Message Waiting Indicator Activation (Audible) - Expanded	
	AM - Remote Activation of Message Waiting - Expanded	BSE	

FEATURE OPERATION:

The subscriber to the ESP's service has calls forwarded to the ESP's 7 or 10
digit telephone number.  The end user can use Call Forwarding Busy Line, Call
Forwarding Don't Answer, Call Forwarding Variable, or direct call to reach the
ESP's voice message service.  The ESP can activate a message waiting indicator
for end users not served by the same central office switch as the ESP as long
as the called subscriber (end user) and the ESP's central office are connected
via the SS7 network and are equipped with the appropriate softward packages.

Messages from the Voice Message Provider:

Two message types may be sent by the voice message provider to the serving 
central office via a Dedicated Network Access Link (See: Message Desk (SMDI) - 
Expanded).  The first message activates the Message Waiting Indicator (MWI)
feature on a specified directory number, the second message deactivates the
indicator.  The ESP's serving central office does not acknowledge receipt of
these messages unless it encounters a problem when attempting to execute the
request.

There are two types of failure messages, invalid and blocked.  The invalid
message results from an attempt to activate or deactivate MWI on a directory
number not assigned the MWI option.  The failure message can also be generated
when a directory number is transmitted with incomplete or inaccurate 
information.  The blocked message indicates that the central office was 
momentarily unable to execute the message request.

The ESP's serving central office does not expect an acknowledgement signal
indicating the activation/deactivation of MWI for the ESP.

TECHNOLOGICAL AND FEATURE INTERACTION CONSIDERATIONS:

1. This feature is available in the following central office switches:

Switch Type			1A ESS		5ESS	DMS-100
Earliest Generic Release	1AE11.03*	5E7*	BCS30*

* ESP and End User's serving central offices must be interconnected with SS7.

2. The ESP's customer premises equipment (CPE) used to receive and interpret the
   SMDI data must use the same signaling and data communications protocol as the
   telephone office Input/Output channel.  This channel uses a standard 
   Electronic Industries Association (EIA) RS232 asynchronous 1200-baud ASCII 
   interface.

3. Interconnection to the CPE is via standard outside plant cable, tip and ring
   connections.  

4. Interface Description - Interface Between Customer Premises Equipment,
   Simplified Message Desk and Switching System: 1A ESS, Issue 1, July 1985.

5. References:
   o Ameritech Message Signal Interface (AMSI) and Ameritech Message Signal
     Interface - Expansion AM-TR-OAT-000065, Issue 1, July 1990.
   o Technical Reference for Call Forwarding Busy Line and Call Forwarding
     Don't Answer can be found in Bellcore TR-TSY-000522.

This service, if offered as a BSE, is associated with the Dedicated Network
Access Link serving arrangement.
