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ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
Connecting to Internet Telephony Service Providers with SIP Trunks
ShoreTel & Ingate SIParator
Jerome JoannySenior Product Manager
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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Today’s Agenda
• The SIP trunk problems & How Ingate addresses them
• ShoreTel integration philosophy : Technology Partner Program(TPP)
• Demonstrate how to connect SIP trunks from anITSP to a ShoreTel system using a ‘SIParator’
• Provide an opportunity for Q&A from the floor
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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SIP trunking problematic
• NAT traversal for SIP– NAT resides at L3 – SIP at L7– NAT processing “breaks” SIP addressing
• Network & SIP Communication security– Physical medium is the IP pipe – Firewalls control what goes in or out such pipe
• SIP Protocol Normalization & translation– Not all SIP are created equal … and compatible– Open Standard …open to interpretations
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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603-883-6569
INGATE Siparator addressing the NAT issue
Firewall
PSTN Gwy
Service Provider
PSTN
IP 10.200.10.16
IP 168.203.30.11
972-678-0464
ShoreTel
IP 168.105.45.19
To:972-678-0464@ IP 168.105.45.19From: 603-883-6569 @10.200.10.16
To/URI:972-678-0464@ IP 168.105.45.19
From: 603-883-6569 @10.200.10.16
IP 168.203.30.11
account@provider.com
For calls to route successfully internal IP addresses have to bere-written
The SBC handles the Network Address Translation (NAT)
Address re-write
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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972-678-0464
ITSPs can’t reach the IPBX in the LAN
Firewall
PSTN Gwy
Service Provider
PSTN
IP 10.200.10.16
IP 168.203.30.11
603-883-6569
ShoreTel
IP 168.105.45.19
From:972-678-0464@ IP 168.203.30.11To:603-883-6569@168.105.45.19
Address re-write
To/URI:603-883-6569@168.105.45.19IP 10.200.10.16
For calls to route successfully IP addresses have to be re-written
The SBC again handles the Network Address Translation (NAT)
Service Provider can only address the known public IP-address of the Enterprise
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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No Need to Replace the Existing Firewall!
Siparator
How does the Siparator help?
DMZ
SIP-enables any firewall
It works with existing firewallsDynamically manages ports need for SIP: -SIP Signaling port 5060 -Range of UDP/TCP ports
Provides a B2BUA & SIP Proxy
Normal Firewalls
SIP
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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B2BUA handles the “REFER” SIP method locally and a new media stream is set up to Jane
Call-ID: X
PSTN Gwy
Service Provider
PSTN
The ITSP SIP transfer problem
SBC with B2BUA
IP 168.203.30.11DMZ
603-883-6569 972-678-0464
ALG
John
603-883-6580
Jane
Bob
Call-ID: X
Hi John !May I speakwith Jane ?
Sure! I will transfer you to Jane
*) The REFER SIP method
?
ShoreTel
Re-INVITE
Call-ID: Y
ITSP sees a RE-INVITE with the same Call ID
REFER to Jane
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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ShoreTel’s philosophy on integration
ShoreTel Technology Partner Program - Mission Enable ShoreTel Reseller Partners to deliver complete
business solutions to end customers with confidence
• Provide partners and customers with validated ‘end to end’ multi-vendor solutions in the SIP ‘plug and pray’ era
• Products undergo mutual validation testingto check compatibility
• We have validated interworking with 7 SIP carriers (Airespace ,ATT IP Flex, Bandtel, Bandwith.com, Broadvox, Etherspeak, Gamma Telecom )
• There are 20+ ITSPs in the pipeline
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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ShoreTel Technology Partner Program
Mission Enable ShoreTel Reseller Partners to deliver complete
business solutions to end customers with confidenceEx : Bandwidth.com is a TPP certified partner
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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Practical Demonstration
Jerome Joanny, Sr Product Manager, ShoreTelLisa Hallingstrom, System Engineering, Ingate
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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Detailed Demonstration SetupShoreWare Director ShoreGear 90
SIParator
IP 565 IP 565
Bandwidth.com
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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THANK YOU
© 2007 ShoreTel, Inc. All rights reserved worldwide. The ShoreTel logo, ShoreTel, ShoreCare, ShoreGear, ShoreWare, and ControlPoint are registered trademarks of ShoreTel, Inc. in the United States and/or other
countries. ShorePhone is a trademark of ShoreTel, Inc. in the United States and/or other countries.All other copyrights and trademarks herein are the property of their respective owners.
ShoreTel CONFIDENTIAL -- FOR INTERNAL USE ONLY(c) ShoreTel, Inc. 2007 -- ALL RIGHTS RESERVED
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