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Personal SIP Account Workshop

IAP 2008 VoIP SeriesDennis Baron

January 22, 2008

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Outline

• What is SIP

• Personal SIP Accounts

• Downloading and installing client software

• Questions and answers

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What’s SIP

• IETF Standard defined by RFC 3261

• “The Session Initiation Protocol (SIP) is an application-layer control (signaling) protocol for creating, modifying and terminating sessions with one or more participants.”

• Can be used for voice, video, instant messaging, gaming, etc., etc., etc.

• Uses URIs for addressing – single communications identity– mailto:dbaron@MIT.edu for email

– xmpp:dbaron@MIT.EDU for instant messaging

– sip:dbaron@MIT.EDU for voice and video

• Username replaced by numbers for telephone applications

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SIP Components

• User Agents– Clients – Make requests– Servers – Accept requests

• Server types– Redirect Server– Proxy Server– Registrar Server– Location Server

• Gateways

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SIP Trapezoid

DNS Server

Location Server

Terminating User Agent

Outbound Proxy

Originating User Agent

DNS

SIP

SIP

SIP SIP

RTP

Registrar

Inbound Proxy

SIP

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What are Personal SIP Accounts• Uses your MIT SIP communications identity

• One account per person

• Allows you to use your own hardware or software for placing and receiving Internet calls

• Assigns a traditional telephone number for receiving calls

• Web interface for customizing your account

• “Experimental” service aimed at early technology adopters

• Not intended as a replacement for other telephone services

• IS&T support limited to activating accounts and web page– No support at this time for clients

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Personal SIP Support Model• Self service account activation

– https://voip.mit.edu/cgi-bin/personal/sipmgr/

• IS&T Documentation– http://mit.edu/ist/topics/telecommunications/psip/

• SIP Users at MIT Wiki– https://wikis.mit.edu/confluence/display/SIP/SIP+Users+at+MIT

– Your contributions to the wiki are supported and encouraged!

• SIP Users Forum– https://scripts-cert.mit.edu/~sip/sip-users/

– Not currently active – may replace with newer technology

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Web Management Page

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Web Management Page (cont.)• Call routing control

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Web Management Page (cont.)• Call blocking control

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Web Management Page (cont.)• SIP Registrations

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• “Hard phones”

• “Soft phones”

Soft and Hard SIP Clients

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1

2

SIP Device Configuration for MIT• There is no standard terminology

Display name: Dennis Baron

User name: dbaron

Authorization user name: dbaron

Authorization password: *****

Domain: mit.edu

Outbound proxy: outgoing-sip-proxy.mit.edu

• Authorization user name is often assumed to be the same

• Don’t use your Kerberos password – same one as on web page

1

2

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Downloading CounterPath X-Lite

• Goto - http://www.counterpath.com/x-lite-downloadsurvey.html

• Choose your version– 3.0 for Windows - 2000, XP

http://storage.counterpath.com/downloads/X-Lite_Win32_1011s_41150.exe?platform=win32&product=xlite

– 3.0 for Mac - OS X 10.4 (Doesn’t currently work on Leopard)

http://storage.counterpath.com/downloads/X-Lite_Mac_1011b_39984.dmg?platform=mac&product=xlite

– 2.0 for Linux

http://storage.counterpath.com/downloads/X-Lite_Install.tar.gz?platform=linux&product=xlite

• Support Forum - http://support.counterpath.com/

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Configuring CounterPath X-Lite

← Your full name for the “From:” field← Your Kerberos username← Your SIP password

← mit.edu

← outgoing-sip-proxy.mit.edu

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IAP 2008 - VoIP Series• SIP Fundimentals

Dennis Baron Tue Jan 15, 01-02:30pm, 4-149

• Personal SIP Account WorkshopDennis Baron Tue Jan 22, 01-02:30pm, 4-231

• Build, Test, and Deploy VoIP Applications with Asterisk and other Open-Source Applications

Elliot EichenTue Jan 29, 01-02:30pm, 4-231

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Questions?