© 2009 Avaya Inc. All rights reserved. Introduction to SIP Trunking in the Enterprise Henry Pinera...
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Transcript of © 2009 Avaya Inc. All rights reserved. Introduction to SIP Trunking in the Enterprise Henry Pinera...
© 2009 Avaya Inc. All rights reserved.
Introduction to SIP “Trunking” in the EnterpriseIntroduction to SIP “Trunking” in the EnterpriseHenry PineraSystems [email protected] February 2009
© 2009 Avaya Inc. All rights reserved.
Why SIP? A great pedigree
© 2009 Avaya Inc. All rights reserved.
Limitation & Challenges of Private IP (H.323/SIP) Trunking
IP WANIP WAN
PSTNLocal &
Long Distance
PSTNLocal &
Long Distance
IP Data &Telephony
• Private IP (H.323/SIP) trunks are limited to VoIP communications between internal systems/sites• Separate TDM interfaces are required for external communication (partners/suppliers/customers)• Extra cost, extra hardware, extra complexity
Customers/ Partners/ Suppliers
LAN LAN
TDM in
terfa
ces TDM
interfaces
Why SIP Trunking?Why SIP Trunking?
IP Phone IP Phone IP Phone IP Phone
Exter
nal C
omm
unicat
ions
External Comm
unications
Internal Communications
© 2009 Avaya Inc. All rights reserved.
SIP TrunkingA Single Pipe to the Cloud
WANWAN
PSTNLocal &
Long Distance
PSTNLocal &
Long Distance
H.323
SIPSIP
Customers/ Partners/ Suppliers
LAN LAN
IP Phone IP Phone IP Phone IP Phone
• Single IP link for voice/data• Optimize use of WAN access by consolidating voice and data services• Reduce PSTN interfaces for long-distance and local access• Assign local telephone numbers to any ‘virtual location,’ independent of physical location• Prepares for future SIP solutions
© 2009 Avaya Inc. All rights reserved.
Flavors of SIP Trunking
Service Provider Service Provider
Service Provider Enterprise / Contact Center(one or multiple locations)
Enterprise / Contact Center Enterprise / Contact Center
Enterprise / Contact Center Application Servers
SIP trunking can be over the LAN, WAN or dedicated circuits.
SIP trunking can be over the LAN, WAN or dedicated circuits.
© 2009 Avaya Inc. All rights reserved.
Building Blocks of SIP Trunking
Service Provider
– Service
– Session Border Controller (SBC)
Customer Premise
– Edge security device: SBC, Firewall, etc
– Communication Platform: Server(s), Gateway(s),SIP Proxies, etc
– Application Servers: messaging, video & audio conferencing, collaboration tools, IM, Presence, and more
– Endpoints: hardphones, softphones, mobile devices, application integration
Service Provider
SBCServer / Gtwy
… or direct connection
© 2009 Avaya Inc. All rights reserved.
Components of SIP Trunking Solution
SIP
Modular Messaging
Voice Portal
CM Branch EditionCommunication Manager
SESMeeting Exchange
SBC
DS3/ISDN
G860
IP Office
CustomersPartnersSuppliers
Avaya one-X©
Communicator
ITSPPSTN
SIP
SIP
CustomersPartnersSuppliers
© 2009 Avaya Inc. All rights reserved.
SIP Trunking - Overview
No need for a SIP phone to make/receive a SIP call
SIP Trunks are licensed in increments of 1, 5, 10 and 20 (up to 128 channels)
SIP Provider(s)
T1/E1/ISDN
Provider(s)
Analog Provider(s)
SIP phone (future)
Digital phone (24xx/54xx/T3)
Analog phone
IP phone (46xx/56xx/T3 IP)
IP DECT
Benefits – Lower operational costs Lower cost/flat rate calls with Internet Telephony SPs
Offers back-up to Analog/Digital Trunks + Number Portability
Future-proof your investment
IP Office acts as a SIP gateway
© 2009 Avaya Inc. All rights reserved.
Will CM Support SIP Trunks from XYZ SP?
1. DevConnect compliance testing For U.S. SIP SPs, no longer a requirement but still
HIGHLY RECOMMENDED No change to non-U.S. Service Providers;
DevConnect compliance testing required Contact: http://www.avaya.com/devconnect
2. Professional Services engagement for enterprise customers
3. In-region R&D Contact: In-region Product Manager
http://www.avaya.com/master-usa/en-us/resource/assets/applicationnotes/genspsiptrk-v1-1.pdf
© 2009 Avaya Inc. All rights reserved.
SIP SP – DevConnect Members
United States– AT&T– BandTel– Bandwidth.com– Clear Channel Satellite– ConneXon Telecom (911
Enable)– Cox Communications– Global Crossing– Nectar (AGN Network)– PAETEC (McLeodUSA)– Telcordia– Telepacific– Verizon Business– XO Communications
EMEA– BT [Germany and Spain]– Club Communications
[UK]– COLT [UK and Germany]– KPN [Netherlands]
APAC– Singtel [Singapore]– Telstra [Australia]– TFN [Taiwan]
© 2009 Avaya Inc. All rights reserved.
Service Provider
SIP Proxy
Architecture
3rd partysystems
High Density Gateways (Avaya G860)
VoicePortal
Outsourcer
Communication Manager systems
BranchAgents
Remote Agents
Business Applications
Conferencing Unified Messaging
© 2009 Avaya Inc. All rights reserved.
Peering Enterprise Contact Centers
COMPACT
COMPACT
COMPACT
COMPACT
Virtual (shared) Server
Virtual Shared Server
Primary Contact Center
Secondary Contact Center
MPLS Network
Nuance Proxy ServerNuance Media Servers
(100s)
Primary Site (Houston, TX)
Nuance Proxy ServerNuance Media Servers
(100s)
Secondary Site (Sunnyvale, CA)
Notes:
1) Will use standard US centric 10 digit dialing for now. International configurations are out side of the scope of this phase of the project.
2) Server configurations should be done based on the IP addresses NOT DNS.
3) Call Routing will be based on DIDs. Nuance will ensure that transfers will be to the contact center the sent the call to them
RTP Traffic (G711, 20ms, no encryption, RFC 2833) Note: 80kbps without L2 encapsulation
Avaya DSP Resources
Signaling
Signaling
Note: Avaya will only Interface with Public IP Address Interfaces of Nuance. All
needed NAT is to be performed on the part Nuance presumably by some SBC.
Call Flow1) Call will come in on T1s located in Communication Manager controlled Gateways at each location.2) Calls will be routed via SIP Trunks to Primary or Secondary site (depending on availability). Only Delivery requirement is correct ANI and DNIS.3) The calls will be answered by specific Voice Recognition Applications. 4) Once the call has been processed by the application it will be transferred back to the originating Communication Manager via the SIP REFER method.
Production : T
3
Test : T
1
Signaling and Bearer
Production : T3
Test : T1
Signaling and Bearer
© 2009 Avaya Inc. All rights reserved. 14© 2007 Avaya Inc. All rights reserved. Avaya – Proprietary & Confidential. Under NDA