Transcript Slide 1

SIP Trunking:
Considerations at the
Enterprise Edge
October 2010
Bud Walder
Enterprise Marketing
Director
+1 973.967.5762
[email protected]
www.dialogic.com
Vince Connors
Product Line Director
+1 716.639.3217
[email protected]
www.dialogic.com
Content
 Session Border Controllers (SBCs) and SIP Trunking:
– Infonetics - Market background & trends
 Enabling Secure SIP Services
– Dialogic - Enterprise Network Edge Considerations
 Enterprise Network Edge Element Focus
– Dialogic® BorderNet™ 500 Gateways
• Product Line Introduction
 Resources & Q&A
SLIDE 2
© Copyright 2010 Dialogic Corporation. All rights reserved.
What is SIP trunking?
Enterprise Network
THE NEW MODEL
Service Provider Network
IP PBX
•
Session Initiation Protocol: VoIP
protocol supported by most
service providers and equipment
vendors
•
SIP trunk: logical voice circuit
•
Broadband connections, data
networks
CO Lines
PSTN
Switch
Media
Gateway
CPE
WAN link
Internet
IP PBX
IP Phones
WAN link
THE OLD MODEL
•
Dedicated voice circuits/trunk
lines (T1s, PRIs)
•
High reliability, port-based
CPE
Source: Infonetics Research, Inc.
SLIDE 3
© Copyright 2010 Dialogic Corporation. All rights reserved.
Switch
IP Phones
How SIP trunks are delivered
Over-the-top
Bundled offering
•
Separate SIP trunk and data providers
•
Single provider for SIP trunk and physical
network connectivity
•
“Bring your own bandwidth”
•
Shop around for the best offering
•
Option for end-to-end QoS for SIP traffic
•
SIP traffic is at the mercy of data provider
•
Clear demarcation of SIP trunk at CPE
SIP Trunk Provider
SIP trunk and
Data Provider
Data Provider
Customer
premise
Customer
premise
SLIDE 4
Source: Infonetics Research, Inc.
© Copyright 2010 Dialogic Corporation. All rights reserved.
SIP trunking services are catching on
PBX Trunking Services
T1 lines
VoIP trunk—SIP
ISDN PRI
Standard analog/digital
phone lines
VoIP trunk—non-SIP
2012
ISDN BRI
Now
0%
20%
40%
60%
80%
Percent of Respondents
Source: Infonetics Research, SIP Trunking Deployment Strategies: North American Enterprise Survey, July 2010
SLIDE 5
© Copyright 2010 Dialogic Corporation. All rights reserved.
IP trunks in service are growing fast
IP trunks in Service (Millions)
IP Trunking Forecast
30
25
20
15
10
5
0
CY07
CY08
CY09
CY10
CY11
CY12
CY13
Source: Infonetics Research, VoIP and Unified Communication Services and Subscribers, May 2010
SLIDE 6
© Copyright 2010 Dialogic Corporation. All rights reserved.
CY14
SIP trunk adoption drivers
Centralize applications
Upgrading infrastructure
Multimedia communications
Easier management
Flexibility
Lower communication services costs
Speed of deployment/service changes
Simplicity
Centralize trunking
Centralized reporting/billing
Existing service contract up for renewal
0%
20%
40%
60%
80%
Percent of Respondents Rating “Definitely a driver”
Source: Infonetics Research, SIP Trunking Deployment Strategies: North American Enterprise Survey, July 2010
SLIDE 7
© Copyright 2010 Dialogic Corporation. All rights reserved.
Why SIP trunking now?
2009 PBX System Shipments
IP vs TDM Extension on PBX Systems
100%
80%
IP
TDM
60%
TDM PBX
40%
20%
IP PBX
0%
•
75%+ of PBXs sold today are IP-capable
•
IP extensions will outnumber TDM extensions next year
TDM as an intermediary adds cost and restricts new features
SLIDE 8
Source: Infonetics Research, Unified Communication, VoIP, and TDM Equipment, August 2010
© Copyright 2010 Dialogic Corporation. All rights reserved.
Networking issues stand in the way of SIP trunking
•
•
•
•
•
•
•
NAT (network address translation)
Firewall traversal
SIP Interoperability
SIP Security
Legacy Infrastructure (non-SIP)
Service Demarcation
Fax Support
SLIDE 9
© Copyright 2010 Dialogic Corporation. All rights reserved.
SIP trunking doesn’t require session border controllers
Source: Infonetics Research, Inc.
Network Topology
• Intrusion
• Malicious Attacks
•
Security
Service Provider
• Premise Systems
• Fax Systems
•
Firewall Traversal
• Quality of Service
• Premise Device
•
Control
Interoperability
But SBCs increasingly are used because they solve networking challenges
SLIDE 10
© Copyright 2010 Dialogic Corporation. All rights reserved.
Content
• Session Border Controllers (SBCs) and SIP Trunking:
• Infonetics - Market background & trends
• Enabling Secure SIP Services
• Dialogic - Enterprise Network Edge Considerations
• Enterprise Network Edge Element Focus
• Dialogic® BorderNet™ 500 Gateways
• Product Line Introduction
• Resources & Q&A
Copyright © 2010 Infonetics Research, Inc.
The SIP Interoperability Challenge
 The SIP standard leaves substantial room for
interpretation and implementation choices. This leads
to variance between the entities that create SIP
solutions, both equipment vendors and service
providers. SIP interoperability is only assured through
compliance testing.
 Resolving SIP Interoperability
– Compliance Testing and Configuration Templates
• Testing selected services and systems
• Profile configurations in management interfaces
– Edge Device Interoperability Toolkits
• SIP header manipulation
• Advanced routing
• SIP B2BUA – ‘back to back user agent’
SLIDE 12
© Copyright 2010 Dialogic Corporation. All rights reserved.
Secure Firewall and NAT Traversal
 Standard Firewall Design
– Allow Premise Users to Make Public Network Requests
• HTTP - Browse the Web
PUBLIC NETWORK
REQUESTS
– Block Unsolicited Requests from the Internet
• Inbound ‘SIP Phone Calls’
SIP
– Hide Network Topology
• Mask Internal IP Addresses
 Live SIP Communication Requires:
FIREWALL
– Secure Method to Traverse the Firewall
• SIP Application Layer Gateway (ALG)
• SIP Aware Firewall
• Session Border Controller
– Maintain NAT and Port Security
– Remote Firewall and NAT Traversal
• ‘Pinholes’ in the Firewall
– Less enterprise control and security
SLIDE 13
© Copyright 2010 Dialogic Corporation. All rights reserved.
HTTP
SIP
CUSTOMER
PREMISE REQUESTS
SIP Security Issues
 Primary Security Issues
– Denial of Service Attacks
• Continued requests to the network to disrupt services by
overloading network resources
– SPIT (Spam over Internet Telephony)
• Unwanted automatically dialed calls from malicious
persons or telemarketers
– Toll Fraud
• Theft of service through unauthorized access
 Addressing SIP Security
–
–
–
–
SLIDE 14
SIP Intrusion Detection and Prevention
Dynamic Port Allocation per Call
Dynamic SIP URI Encryption
sRTP, TLS and HTTPS
© Copyright 2010 Dialogic Corporation. All rights reserved.
SIP & Legacy Infrastructure Issue

SIP
Existing TDM PBXs and many Hybrid PBXs do not have SIP
protocol support
– In some cases, SIP upgrades are not available
– When available, SIP upgrades can be very expensive
TDM

Enabling SIP service connectivity with legacy infrastructure:
– VoIP to TDM Conversion – translate and transcode packet VoIP
streams to traditional TDM circuit switched voice channels
– SIP to TDM Protocol Conversion – translate SIP signaling into any
Primary Rate ISDN signaling (T1 or E1) and CAS
– Emulate PSTN Trunk Service – provide physical connections to
legacy PSTN trunk ports on the PBX or Contact Center System
– Dial Plan Modification - append or strip digits as needed to
normalize routing between disparate devices
SLIDE 15
© Copyright 2010 Dialogic Corporation. All rights reserved.
Fax over IP Support / FoIP
 Traditional PSTN Fax Transmission Protocol is T.30
– Unreliable over an IP network
– Not designed to navigate Jitter, Latency and Packet loss
– Pass-Through Techniques are only about 80% reliable
• page by page!
 Reliable FoIP Transmission Protocol is T.38
–
–
–
–
ITU Fax Relay Protocol for IP Networks
Designed to deal with Jitter, Latency and Packet Loss
Gateway and ATA devices convert T.30 to T.38
Uses up to 80% less bandwidth than Fax Pass-Through
techniques
– Reliability rivals traditional T.30 fax over PSTN / TDM
networks
SLIDE 16
© Copyright 2010 Dialogic Corporation. All rights reserved.
SIP Service Demarcation

Defining Service Demarcation
– Physical trunk service termination point
– Located on customer premise
– Defines QOS location ownership / responsibility
PUBLIC
NETWORK
• Service provider
• Enterprise telecom or IT department (or outsourced to a PBX vendor)
– Typically not well defined for SIP Trunking services
• ‘Over the top’ service on broadband data pipe
DEMARC

Establishing SIP Service Demarcation
– Enterprise SBC acts as a demarcation point
– QOS Monitoring and Reporting Functions
CUSTOMER
PREMISE
• Enables troubleshooting
• Reduces ‘fingerpointing’
– Robust Diagnostic Tools
• Aids Service Issue Resolution
SLIDE 17
© Copyright 2010 Dialogic Corporation. All rights reserved.
Content
 Session Border Controllers (SBCs) and SIP Trunking:
– Infonetics - Market background & trends
 Enabling Secure SIP Services
– Dialogic - Enterprise Network Edge Considerations
 Enterprise Network Edge Element Focus
– Dialogic® BorderNet™ 500 Gateways
• Product Line Introduction
 Resources & Q&A
SLIDE 18
© Copyright 2010 Dialogic Corporation. All rights reserved.
SBC Equipment Options
Graphic Source:
Infonetics Research, Inc.
SLIDE 19
© Copyright 2010 Dialogic Corporation. All rights reserved.
Dialogic® BorderNet™ 500 Gateways
Integrated Enterprise SBC + Media Gateway

January 2010: Dialogic Press Release:
–
‘Providing “any-to-any” PBX connectivity for SIP trunking, Dialogic Corporation, ………..
will incorporate the award-winning SIP Trunking software module from Ingate Systems into
a new enterprise border element designed to connect virtually any SIP trunk with virtually any PBX’
Enterprise Session
Border Controller
T1/ E1 / BRI to SIP
Media Gateway
+
NAT traversal
• SIP security
• ITSP interoperability
• IP-PBX interoperability
• SIP Service Demarcation
•
SLIDE 20
Dialogic® BorderNet™ 500
Gateways
=
SIP interoperability
• SIP security
• PBX connectivity
• PSTN connectivity / failover
• FoIP gateway support
•
© Copyright 2010 Dialogic Corporation. All rights reserved.
•
Any to Any Connectivity for
SIP Services
Dialogic® BorderNet™ 500 Gateways: Preliminary Specifications
– Broad Product Line and Scalability
•
•
•
•
•
25 session SIP to SIP
4 port, 8 channel - BRI to SIP
24/30 channel - T1/E1 to SIP
96/120 channels - Quad T1/E1 to SIP
All SKUs scale to 150 SIP sessions
–
– Complete Support for SIP Trunking Services
•
•
•
SIP Proxy, SIP Registrar
SIP Interoperability
SIP Connection set up (SIP + RTP)
– Complete PBX, PSTN, IP and Fax Protocol
Support
•
•
•
PRI, BRI, ISDN, CAS, Q.SIG protocols
SIP (RFC32XX), Microsoft® SIP (TCP Transport), Microsoft®
Secure SIP: TLS
T.30 (PSTN) Fax to T.38 (FoIP)
–
Value Added Software Options
•
Remote SIP Connectivity (Far-end NAT-passering incl
STUN-server)
•
•
•
QoS (bandwidth limitation and prioritization
Enhanced Security (IDS/IPS for SIP, SRTP and TLS)
VoIP Survival (VoIP redundance if Internet
connection fails)
SIP Registrar (SIParator software is used as the
primary SIP registrar)
•
–
Flexible, Cost Effective Support for Analog
Devices
•
•
Support for ATAs & FXS Gateways from Grandstream
& Cisco
Interface for any number of Analog Devices
Exclusive V.34 Fax / FoIP speed
The right mix of features and densities for success with SIP Services
SLIDE 21
© Copyright 2010 Dialogic Corporation. All rights reserved.
Dialogic® BorderNet™ 500 Gateways
Enabling Secure and Interoperable SIP Services for the Enterprise*
ISP
SIP Trunk
Service
Broadband
Internet
Service
ITSP
PSTN
SIP
Interop
SIP QoS
Demarcation
SIP
Security
TDM / PSTN
Gateway
Firewall / NAT
Traversal
Fax / FoIP
Gateway
Optional PBX
/ PSTN
Gateway
Connectivity
Support
BorderNet 500 Gateway
SIP Applications
• IP PBX
• Unified Communications
• IVR
• Contact Center
• Unified Messaging
• Conference Server
• FoIP Server
Legacy
PBX
(non-SIP)
TDM Applications
• IVR
• Contact Center
• Messaging
• Conference Server
• Fax Server
IP-Phone
IP Soft-Phone
ATA / FXS
Gateway
Digital Phone
POTs Phone
Fax Machine
POTs Phone
Fax Machine
* - Please refer to ‘USE CASE(S)’ portion of the Legal Notice on the last slide
SLIDE 22
© Copyright 2010 Dialogic Corporation. All rights reserved.
Summary
 SIP Trunking: Considerations at the Enterprise Edge
– SIP Trunk Penetration Approaches 65% by 2012 in North America
• Drivers
– Centralize Applications, Multimedia Communications, Cost reduction, etc
– SIP Trunking doesn’t require Session Border Control…but there are considerations
• Firewall & NAT Traversal, Interoperability, Security, QoS Demarcation Control
– Enterprise Session Boarder Controllers
• Interface to Legacy Infrastructure, PSTN connections and FoIP
– Integrated Media Gateways
– Dialogic® BorderNet™ 500 Gateways
• Enable Secure, Interoperable, and Flexible SIP Service Deployment
SLIDE 23
© Copyright 2010 Dialogic Corporation. All rights reserved.
Resources and Q&A

Web-Based Resources at www.dialogic.com:
– SIP Trunking Solution Page
• Enabling Secure and Interoperable SIP Services for the Enterprise
– Dialogic® BorderNet™ 500 Gateways Product Page
• 9/14/2010 Product Launch Press Release
– FoIP Solution Page
• Recorded webinars, whitepapers, case studies

Contact Us!
– [email protected]
– [email protected]
Thank You for
Attending!
SLIDE 24
© Copyright 2010 Dialogic Corporation. All rights reserved.
Dialogic, Dialogic Pro, Brooktrout, Diva, Diva ISDN, Making Innovation Thrive, Video is the New Voice, Diastar, Cantata, TruFax, SwitchKit, SnowShore, Eicon, Eicon
Networks, NMS Communications, NMS (stylized), Eiconcard, SIPcontrol, TrustedVideo, Exnet, EXS, Connecting to Growth, Fusion, Vision, PacketMedia,
NaturalAccess, NaturalCallControl, NaturalConference, NaturalFax, Shiva and BorderNet among others as well as related logos, are either registered trademarks or
trademarks of Dialogic Corporation or its subsidiaries (“Dialogic”). Microsoft and Lync are either registered trademarks or trademarks of Microsoft Corporation in the
United States and/or other countries. Other names of actual companies and products mentioned herein are the trademarks of their respective owners. Dialogic
encourages all users of its products to procure all necessary intellectual property licenses required to implement their concepts or applications, which licenses may vary
from country to country. Dialogic may make changes to specifications, product descriptions, and plans at any time, without notice.
USE CASE(S)
Any use case(s) shown and/or described herein represent one or more examples of the various ways, scenarios or environments in which Dialogic products can be
used. Such use case(s) are non-limiting and do not represent recommendations of Dialogic as to whether or how to use Dialogic products.
09/10
SLIDE 25
© Copyright 2010 Dialogic Corporation. All rights reserved.
www.dialogic.com