draft-ietf-spirits-architecture-01.txt   draft-ietf-spirits-architecture-02.txt 
Network Working Group L. Slutsman (Ed.) Network Working Group L. Slutsman (Ed.)
Internet Draft AT&T Labs Internet Draft AT&T Labs
<draft-ietf-spirits-architecture-01.txt> I. Faynberg <draft-ietf-spirits-architecture-02.txt> I. Faynberg
Expires August 2001 H. Lu Expires October 2001 H. Lu
M. Weissman M. Weissman
Lucent Technologies Lucent Technologies
The SPIRITS Architecture The SPIRITS Architecture
Status of this Memo Status of this Memo
This document is an Internet-Draft and is in full conformance wit all This document is an Internet-Draft and is in full conformance wit all
provisions of Section 10 of RFC2026. provisions of Section 10 of RFC2026.
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Internet Caller-ID Delivery, and Internet Call Forwarding are examples Internet Caller-ID Delivery, and Internet Call Forwarding are examples
of SPIRIT services.) Specifically, it defines the components of SPIRIT services.) Specifically, it defines the components
constituting the architecture and the interfaces between the constituting the architecture and the interfaces between the
components. components.
The rest of the document is organized as follows: The rest of the document is organized as follows:
+ Section 2 describes example SPIRITS services from the end-user point + Section 2 describes example SPIRITS services from the end-user point
of view; of view;
+ Section 3 describes the SPIRITS architecture; + Section 3 describes the SPIRITS architecture;
<draft-ietf-spirits-architecture-01.txt> August 2001 <draft-ietf-spirits-architecture-02.txt> November 2001
+ Section 4 contains security consideration; + Section 4 contains security consideration;
+ Section 5 contains acknowledgments; + Section 5 contains acknowledgments;
+ Section 6 contains references; and + Section 6 contains references; and
+ Appendix contains the figure. + Appendix contains the figure.
2. Brief Description of Example SPIRITS Services 2. Brief Description of Example SPIRITS Services
To illustrate the motivation for the overall SPIRIT architecture, To illustrate the motivation for the overall SPIRIT architecture,
this section provides a brief description of the example SPIRITS this section provides a brief description of the example SPIRITS
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The Internet call waiting service enables a subscriber engaged in an The Internet call waiting service enables a subscriber engaged in an
Internet dial-up session to Internet dial-up session to
o be notified of an incoming call to the very same telephone line o be notified of an incoming call to the very same telephone line
that is being used for the Internet connection; that is being used for the Internet connection;
o specify the desirable treatment of the call; and o specify the desirable treatment of the call; and
o have the call handled as specified. o have the call handled as specified.
<draft-ietf-spirits-architecture-01.txt> August 2001 <draft-ietf-spirits-architecture-02.txt> November 2001
The details of the ICW service lie in the ways that a waiting call The details of the ICW service lie in the ways that a waiting call
can be treated [1]. Typical ways for handling a call include: can be treated [1]. Typical ways for handling a call include:
+ Accept the incoming call over the PSTN by terminating the Internet + Accept the incoming call over the PSTN by terminating the Internet
connection. (As switching cannot be done immediately, the caller may connection. (As switching cannot be done immediately, the caller may
hear an opening announcement followed by the "ringing" tone.) hear an opening announcement followed by the "ringing" tone.)
+ Forward the incoming call to another telephone number. The + Forward the incoming call to another telephone number. The
subscriber will remain connected to the Internet, while the caller subscriber will remain connected to the Internet, while the caller
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the relevant description in Section 2.1. Otherwise, the subscriber's the relevant description in Section 2.1. Otherwise, the subscriber's
IP host serves as an auxiliary device of the telephone to which the IP host serves as an auxiliary device of the telephone to which the
call is first sent. call is first sent.
2.3 Internet Call Forwarding 2.3 Internet Call Forwarding
The Internet call forwarding service allows a service subscriber to The Internet call forwarding service allows a service subscriber to
forward an incoming call to another telephone number while being forward an incoming call to another telephone number while being
connected to the Internet. If the subscriber has only one telephone connected to the Internet. If the subscriber has only one telephone
<draft-ietf-spirits-architecture-01.txt> August 2001 <draft-ietf-spirits-architecture-02.txt> November 2001
line and is using the very line for the Internet connection, the line and is using the very line for the Internet connection, the
service is a subset of the ICW service and follows the relevant service is a subset of the ICW service and follows the relevant
description in Section 2.1. Otherwise, the subscriber's IP host description in Section 2.1. Otherwise, the subscriber's IP host
serves as an auxiliary device of the telephone to which the call is serves as an auxiliary device of the telephone to which the call is
first sent. first sent.
3. SPIRITS Architecture 3. SPIRITS Architecture
Figure 1 of the Appendix depicts the SPIRITS architecture, which Figure 1 of the Appendix depicts the SPIRITS architecture, which
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The rest of the Section describes the interfaces between the entities The rest of the Section describes the interfaces between the entities
in detail. in detail.
3.1 Interface A 3.1 Interface A
This interface is used for sending PINT requests to PINT Server. Its This interface is used for sending PINT requests to PINT Server. Its
principal use is for service session registration and as a result principal use is for service session registration and as a result
activation of a SPIRITS service (see Section 2). In addition, this activation of a SPIRITS service (see Section 2). In addition, this
interface may be used for service subscription. interface may be used for service subscription.
<draft-ietf-spirits-architecture-01.txt> August 2001 <draft-ietf-spirits-architecture-02.txt> November 2001
3.2 Interface B 3.2 Interface B
This interface serves two main purposes: 1) to notify the subscriber This interface serves two main purposes: 1) to notify the subscriber
of incoming calls together with the calling number and name, if of incoming calls together with the calling number and name, if
available; and 2) to send to the SPRITS Gateway the subscriber's available; and 2) to send to the SPRITS Gateway the subscriber's
choice of call disposition specified on the fly. choice of call disposition specified on the fly.
3.3 Interface C 3.3 Interface C
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6. References 6. References
[1] Lu, H. (Editor), I. Faynberg, J. Voelker, M. Weissman, W. Zhang, [1] Lu, H. (Editor), I. Faynberg, J. Voelker, M. Weissman, W. Zhang,
S. Rhim, J. Hwang, S. Ago, S. Moeenuddin, S. Hadvani, S. Nyckelgard, S. Rhim, J. Hwang, S. Ago, S. Moeenuddin, S. Hadvani, S. Nyckelgard,
J. Yoakum, and L. Robart, "Pre-SPIRITS Implementations of PSTN- J. Yoakum, and L. Robart, "Pre-SPIRITS Implementations of PSTN-
Initiated Services ", RFC 2995. Initiated Services ", RFC 2995.
[2] Faynberg, I., L. Gabuzda, M. Kaplan, and N.Shah, "The Intelligent [2] Faynberg, I., L. Gabuzda, M. Kaplan, and N.Shah, "The Intelligent
Network Standards: Their Application to Services", McGraw-Hill, 1997. Network Standards: Their Application to Services", McGraw-Hill, 1997.
<draft-ietf-spirits-architecture-01.txt> August 2001 <draft-ietf-spirits-architecture-02.txt> November 2001
Appendix Appendix
...................... ......................
+----------------+ . . +----------------+ . .
| +------------+ | . +------------+ . | +------------+ | . +------------+ .
| | | | A . | | . | | | | A . | | .
| | PINT Client|********************|PINT Server/|******** | | PINT Client|********************|PINT Server/|********
| | | | . Gateway | * | | | | . Gateway | *
| +------------+ | . +------------+ . * | +------------+ | . +------------+ . *
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Author's Addresses Author's Addresses
Igor Faynberg Igor Faynberg
Lucent Technologies Lucent Technologies
Room 4D-601A Room 4D-601A
101 Crawfords Corner Road 101 Crawfords Corner Road
Holmdel, NJ 07733-3030 US Holmdel, NJ 07733-3030 US
E-mail: faynberg@lucent.com E-mail: faynberg@lucent.com
<draft-ietf-spirits-architecture-01.txt> August 2001 <draft-ietf-spirits-architecture-02.txt> November 2001
Telephone: +1 732 949 0137 Telephone: +1 732 949 0137
Hui-Lan Lu Hui-Lan Lu
Lucent Technologies Room 4C-607A Lucent Technologies Room 4C-607A
101 Crawfords Corner Road 101 Crawfords Corner Road
Holmdel, NJ 07733-3030 US Holmdel, NJ 07733-3030 US
E-mail: huilanlu@lucent.com E-mail: huilanlu@lucent.com
Telephone: +1 732 949 0321 Telephone: +1 732 949 0321
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followed, or as required to translate it into languages other than followed, or as required to translate it into languages other than
English. The limited permissions granted above are perpetual and English. The limited permissions granted above are perpetual and
will not be revoked by the Internet Society or its successors or will not be revoked by the Internet Society or its successors or
assigns. This document and the information contained herein is assigns. This document and the information contained herein is
provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE provided on an "AS IS" basis and THE INTERNET SOCIETY AND THE
INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR INTERNET ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF
THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
<draft-ietf-spirits-architecture-01.txt> August 2001 <draft-ietf-spirits-architecture-02.txt> November 2001
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