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SIP Trunking
A VASP Perspective
Thomas Roel
Convergence Sales Engineer
651.796.7043
[email protected]
--(BUSINESS WIRE)--In an environment where cutting costs
and streamlining communications tools are critical for
businesses to rapidly gain productivity and increased
return on investment (ROI), SIP Trunking is an ideal
solution for businesses of any size.
“… simple and flexible … “
http://finance.yahoo.com/news/Sprint-SIP-Trunking-Provides-bw-3887565719.html?x=0&.v=1
Case #1

Large e-commerce/TV broadcast company
o
ACD SIP Integration from acquire competitor to
existing Call Processing engine
o
Remote Agents from competitor brought into new
system with SIP endpoints
o
Presence in the Enterprise
o
Migration to SIP Trunking
o
One year cost-savings > $1.7M.
Case #2

On-line Dating Company
o
Desire to create virtual Contact Center
o
SIP Trunking implemented
o
Inbound calls via SIP delivered to outsourced agents via IP
o
Derived Benefits

Centralized Reports

Centralized Recording

Centralized Call-delivery control

> $1M in first year
Case #3

National Bus transportation company
o
Hundreds of locations
o
Was spending thousands of $$ each month on local
and toll-free over traditional trunking methods
o
IP Flex enabled porting of local and 800 #s into
primary Data Center
o
Single trial location derived $72K savings in
very short period of time
We strongly recommend use of SBC for ALL
SIP Trunk Deployments
Session Border Controller – “Firewall for SIP / VoIP”
Secure the borders of a VoIP network
Protect VoIP, video and UC sessions
Authentication, Encryption, NAT traversal, DoS protection
Fix protocol interworking issues
Assure & measure session quality
Monitoring, reporting, & troubleshooting (demarc)
Traditional firewalls cannot:
Prevent SIP-specific overload conditions and malicious attacks
Open / close RTP media ports in sync with SIP signaling
Track session state and provide uninterrupted service
Perform interworking or security on encrypted sessions
Scale to handle many 1000s of real-time sessions
Provide carrier class availability
SIP Trunking – the provider perspective
Is this a certified configuration?
WAN Service
SIP Provider
PSTN
What services do you want?
Multiple flavors of SIP trunking
Call App Server
Session Border
Controller (SBC)
1.
2.
3.
4.
5.
6.
7.
8.
Do I send a 1?
Are you sending me 10 or 11 digits?
Is there a DID range?
Send a + for International?
# of digits for International?
Are trunks both inbound and outbound?
Route pattern choices if this fails?
Fax support?
[P] NACR
Checklist
Deployment
Architecture
Design
& Services
Convergence
(Voice&Data
Teams)
What Determines a
Successful SIP
Deployment?
Customer
(Training)
Enterprise Preparedness
SIP Integration Assurance
IP Optimization Review
Introduction to SIP
Introduction to VoIP
 Evaluation of performance and stability of an existing
data network before deploying a SIP solution
 Call Servers translation and equipment analysis
 Evaluation of performance and stability of an existing
data network before deploying a VoIP solution
 Call Server translation and equipment analysis
 Covers the system components for SIP Trunking, such
as SIP Proxy and Registrar Services, Session Border
Controllers, and basic troubleshooting tools.
 Provides voice professionals with a strong foundation in
data networking protocols such as H.323, H248, as well
as an introductory overview of SIP.
Thank you
Thomas Roel
Convergence Sales Engineer
651.796.7043
[email protected]