LSSGR: Usage-Sensitive Three-Way Calling (FSD 01-02-1304)
Document Number GR-578
Issue Number 03
Issue Date Sep 2003
Replaces TR-TSY-000578 Issue01
ABSTRACT: This document replaces TA-NWT-000578 and TR-TSY-000578.
This Generic Requirements document (GR) provides the Telcordia view of proposed generic requirements for a Stored Program Control
System (SPCS) to provide the Usage-Sensitive Three-Way Calling (USTWC) feature.
USTWC is a SPCS feature that allows a residential customer engaged in a stable two-party call to break out of the call, add a third
party to the conversation, and be charged on a per-usage basis. No access code is required prior to establishing the original two-party
call, allowing customers to add a third party to an established call at any appropriate time, without advance planning.
As determined by the Local Exchange Carrier (LEC), the customer may be billed for a USTWC in any of the following ways:
- An activation charge each time the USTWC customer reconnects to the first leg of a call after having completed dialing (e.g.,
the second leg has been answered or dropped) on the subsequent leg
- A charge for the duration of time the three parties are connected
- Each "leg" of the Three-Way Call (TWC) is charged as a normal two-party call at the existing rate (e.g., free calling area, flat
rate, message units, intraLATA toll, interLATA toll, etc.).
Any number of TWCs may be made during a single two-party call, and these requirements allow a LEC to bill the customer for each TWC
Issue 3 of GR-578-CORE includes text and requirements related to USTWC long duration calls. Issue 3 also adds a requirement related
to a Call Type Code 049 record, and updates references to Technical Reference documents that are now GR documents.
Components of this product are:
Table of Contents:
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