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SIP-T: Context and Architectures. Aparna Vemuri Jon Peterson Level ( 3 ) Communications. Introduction. Context and architectures for SIP-T (draft-vemuri-sip-t-context-00.txt) Roles and responsibilities of network entities Issues for consideration. Purpose. Feature transparency

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Sip t context and architectures

SIP-T: Context and Architectures

Aparna Vemuri

Jon Peterson

Level (3) Communications


Introduction
Introduction

  • Context and architectures for SIP-T (draft-vemuri-sip-t-context-00.txt)

  • Roles and responsibilities of network entities

  • Issues for consideration


Purpose
Purpose

Feature transparency

  • Encapsulation

  • Translation


Pstn ip interconnections
PSTN-IP Interconnections

PSTN origination - PSTN termination (SIP bridging)

  • ingress MGC

    • perform encapsulation

    • perform translation

  • egress MGC

    • interpret body

    • generate ISUP


Pstn ip interconnections1
PSTN-IP Interconnections

PSTN origination - IP termination

  • MGC

    • perform encapsulation

    • perform translation

  • IP end-point

    • ignore ISUP


Pstn ip interconnections2
PSTN-IP Interconnections

IP origination - PSTN termination

  • IP end-point

    • originate SIP

  • MGC

    • generate ISUP


Issues
Issues

  • SIP MIME type negotiation

  • “ISUP repetition” problem


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