SIP TrunkingA VASP Perspective

Thomas RoelConvergence Sales Engineer

651.796.7043troel@nacr.com

--(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 companyo 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

WAN Service

Call App Server

PSTNPSTNSIP ProviderSIP Provider

Session Border Controller (SBC)

Is this a certified configuration?

What services do you want?

Multiple flavors of SIP trunking

1. Do I send a 1?2. Are you sending me 10 or 11 digits?3. Is there a DID range?4. Send a + for International?5. # of digits for International?6. Are trunks both inbound and outbound?7. Route pattern choices if this fails?8. Fax support?

[ ] NACR Checklist

Deployment

What Determines a Successful SIP Deployment?

Evaluation of performance and stability of an existing data network before deploying a SIP solution

Call Servers translation and equipment analysisSIP Integration Assurance

IP Optimization Review 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.

Introduction to SIP

Provides voice professionals with a strong foundation in data networking protocols such as H.323, H248, as well as an introductory overview of SIP.

Introduction to VoIP

Enterprise Preparedness

Thank youThomas Roel

Convergence Sales Engineer651.796.7043

troel@nacr.com