A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Considerations for Directory Assistance
Services Using SIP
Author(s) : J. Haluska, et al.
Filename : draft-haluska-sipping-directory-assistance-00.txt
Pages : 17
Date : 2006-6-20
Directory Assistance (DA) is a well known service in today's PSTN,
and is generally identified with "411" or "NPA-555-1212" type
services in North America. Today's DA services are already becoming
more advanced. Currently the DA service can complete the call for
the user, can send SMS with the listing to the user's wireless phone,
and can provide the user with a wide range of information, such as
movie listings and the weather.
Moving ahead, DA providers envision exciting multimedia services that
support simultaneous voice and data interactions with full operator
backup at any time during the call. For instance, a DA directions
service may announce and display directions to the requested listing,
with the option for the caller to request transfer to an operator
with the latest call context information.
DA providers are planning to migrate to SIP based platforms, which
will enable such advanced services, while continuing to support
traditional DA services.
Implementing DA services with SIP will require the exchange of
certain information which is not normally exchanged for other types
of calls. This document aims to identify such information, and
stimulate discussion about how this information could be exchanged.
Should it be decided that extensions to SIP are required, it is the
authors' intention to use the SIP change process documented in [BCP
67] to attain standardization.
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