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Porta SIP

PortaSIP User Guide

Table of Contents

Preface............................................................................................................................ 3

Hardware and Software Requirements............................................................... 4

1. System Concepts ..........................................................................5

PortaSIP’s Role in Your VoIP Network................................................................. 6

PortaSIP Components................................................................................................ 7

Call Process / Supported Services......................................................................... 8

Follow-me services.................................................................................................... 13

Understanding SIP Call Routing........................................................................... 16

NAT Traversal Guidelines....................................................................................... 22

2. Setting up SIP Services ............................................................ 28

3. How to .......................................................................................... 67

… configure my Cisco gateway to accept incoming SIP calls and

terminate them to a telephony network?......................................................... 68

… configure my Cisco gateway to send outgoing calls using SIP?......... 69

… support incoming H323 and SIP calls on the same gateway?............. 70

… configure my Cisco ATA186 to work with PortaSIP?............................... 70

… provide services and bill a customer who has a SIP-enabled gateway

but no authorization capability (e.g. Cisco AS5350)?

.................................. 70

… make all SIP calls to a certain prefix NNN go to my gateway XXX?.. 71

… create an application to handle PSTN->SIP calls?................................... 71

… configure SIP phone X made by vendor Y?................................................ 71

… bill SIP-to-SIP calls?............................................................................................ 72

… bill incoming calls from PSTN to SIP using a special rate?................... 72

4. Troubleshooting/FAQ................................................................ 74

Common Problems.................................................................................................... 75

FAQ................................................................................................................................. 76

Configuration.............................................................................................................. 78

5. Appendices ................................................................................... 81

APPENDIX A. Tested Routers and NAT Software.......................................... 82

APPENDIX B. Cisco GW Setup for PortaSIP (COMEDIA)........................... 82

APPENDIX C. Clients’ Cisco ATA 186 Configuration for PortaSIP........... 82

APPENDIX D. Configuring Windows Messenger for use as a SIP User

Agent

.............................................................................................................................. 83

APPENDIX E. Setting up back-to-back T1/E1 connection.......................... 87

1 2 3 4 5 6 7 8 ... 88 89

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