SIP Trunking. October 7, 2011

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SIP Trunking

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CenturyLink entities and CenturyLink Channel Alliance members.

VoIP

Evolution

Introduces Qwest Talk 12/1999

One Flex & Peering

Termination 10/2004

Migrating LD and 8XX

To VOIP 03/2001

SIP Trunk &

Bi-directional

Peering 8/2009

IPLD & IP Toll Free

8/2006

Enterprise,

Convergence

Solutions Deployed

1998

1999

2000

2001

2002

2004

Qwest Network

no measurable

jitter 12/02

H.323 11/1996

MGCP

10/1999

H.248 06/2000

SIP

06/2002

IMS Rel. 7

12/2007

2008

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Life Used to Be

Simple

…

• No conference calls

• No Voicemail

• No Email

• No Cellphones

• No Instant Messaging

• No Text Messaging

• No Outlook Directories

• No iPhones

• No 3G/4G… What’s a G?

• No Blackberry

• No work at home

• No WiFi

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…to the

Future

Voice Centric & Centralized

Data Centric & Distributed

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5 Are You Here

TODAY?

TDM

PBX/

KSU

Local

Long Distance

Private WAN

IP

Enabled

PBX

Local

Long Distance

Private WAN

Internet

• Most expensive per MB of access

• Each circuit dedicated to 1 application

• Circuit sized to daily peak demand

• Idle bandwidth can not be shared

• Single access circuit, lowest cost per MB

• Bandwidth shared and available to all apps

• Voice prioritized over data

• Pooled Call Paths so fewer VoIP trunks required

What VoIP allows You to do?

Consolidation

of Your Communication Needs

Needs

Do You WANT to be

Here TOMORROW?

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SIP Trunk

Benefits

• Allows

centralized PSTN

access at HQ over a single data connection to a Service Provider.

• Efficient use of the existing single data connection for multiple applicaitons. (ex)

Internet, video, email, file sharing, and voice service (SIP Trunk), etc

• Delivery of voice service to remote locations over private WAN (MPLS) – Reduce

monthly recurring PSTN charges by consolidating TDM based PSTN access at various

locations

• Allows customers to design a

flexible and cost effective Business Continuity/Disaster

Recovery solution

. Disaster recovery based on legacy PSTN service is more difficult and

expensive

• Enhanced feature like

Remote DID

help customers expand their business to a new location

quickly without having to have a physical presence at a remote location

• Robust

QoS

to prioritize time-sensitive traffic such as voice, e-mail and video

• Ability to port

existing POTS numbers to VoIP service, Local Number Portability

• Inherent

Security

through MPLS Private and Enhanced Ports

• Flexible Management

of voice service over web - Provides customers with access to their

network configurations, trouble ticketing, and tracking from anywhere with an Internet

connection

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7 Centurylink

SIP Trunk Overview

 E

nables IP transport and voice

services with IP-PBX’s or IP-based

network equipment with SIP

functionality.

 Enable the origination and

termination of local voice,

dedicated long distance, domestic

and international inbound and

outbound toll free service, and

E-V911 traffic across a single

broadband connection.

 Offers inbound Remote DID

capability for customers wishing to

offer local numbers for their

customers to call in remote rate

centers that can be aggregated in

SIP format back to those

customers.

SIP Trunk

IP PBX / Soft Switch

Centurylink

VoIP

Network

IP Handsets

Centurylink

IP Network

TD Voice

Network

Customer

Premises

PSTN

TDM Voice

Network

Customer Location

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8 Centurylink SIP Trunk Features

Unlimited Local Calling

Dedicated rate long distance*

Dedicated rate Inbound Toll Free

Domestic and International Toll Free service*

Supporting E911 and V911 (nomadic users)

Switch Diversity*

Supports Local Number Portability

Caller ID**

Route Advance Accelerator

SIP Refer

White Page Directory Listing

Directory Assistance

Operator Service

*

Off-Net Long Distance, domestic and international Toll Free, and Switch Diversity are available as an option.

Additional charges apply. Centurylink iQ

®

_{Networking ports are purchased separately from Centurylink iQ}

SIP Trunk service.

** For inbound calls, the calling party number is provided as the Centurylink SIP Trunk

subscriber’s information is loaded into the line information database (LIDB).

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You and Your customers are always reachable- Business Continuity /

Diaster Recovery

• Switch Diversity

• Tranport Diversity

Reach your customer faster evn when your are not there..

• Remote DID

9

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Switch Diversity – Protect You from a Failure in Cloud

Each trunk group is mapped to two

geographically separate SBC locations

This feature provides capability for overflow

or load balancing across SIP Trunks. Two

configuraiton options.

• Primary / Primary (Default)

• Load Balancing (Percent Allocation)

Benefit:

•Auto re-routing to an alternate SIP Trunk

Group when the primary SIP trunk group is

congested or unavilable without change in

quality of service.

•Enables your customer to reach you even

when there is a diaster in Service

Provider’s network

Centurylink VoIP

Network

Primary SIP Trunk

Trunk Group

Centurylink VoIP

Network

PSTN

TDM Voice Network

Customer Location

Sonus NBS Sonus NBS PSTN GW

Secondary SIP Trunk

Trunk Group

Centurylink

iQ Networking

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Reach Your Customer without Being There

Remote DID

 It is a local telephone number in a location where the customer doesn’t

have a physical presence

 It allows those calling the SIP Trunk customer to place local calls to

reach the SIP Trunk customer, even though the SIP Trunk customer

doesn’t have any local presence.

 It is for an inbound only

 It is similar in concept to Market Expansion Line (MEL) from QC and

Remote Call Forwarding (RCF) from other ILECs

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Remote DID Application – Centralized Contact Center

• Centurylink provides customer with

Remote DIDs

• RDID call is delivered to customer’s call

center where SIP Trunking is

terminating.

–

Inbound service only

–

Outbound calls, including 911 calls,

are blocked for Remote DID

telephony numbers

–

A dedicated SIP Trunk group is used

for 8xx and Remote DID service

• SIP REFER – It is a network transfer of a

call . Therefore, it doesn’t tie up the

customer’s network bandwidth once the

transfer is completed.

• RDID reduces usage charges for the

customer.

Centurylink IP

Network

Provider

Edge Router

SIP Trunk

Centurylink VoIP

Network

PSTN

TDM Voice

Network

Call Center in CA

Partner Networks Remote DID

Toll-Free

Call

PSTN GW 303-123-8901 303-123-4567 Denver Dials 123-4567 RDID incoming call Path Agent in CA answers

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Deployment Model

•Centralized – SIP Trunk at the HQ site

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Deployment Model - Centralized

• Provide a centralized trunking service

at HQ by consolidating PRIs and POTs

service.

• Customer branch offices reach

service through main site via their

private QoS enabled Wan

• E911 or V911 services are still provided

with local service

– Centurylink will need branch

location information

– Nomadic support through end user

portal

Centurylink VoIP

Network

Centurylink iQ

®

_{SIP Trunk}

(Over Centurylink iQ Networking Private

or Internet Port)

PSTN

TDM Voice

Network

HQ

Private WAN (Centurylink or 3rd_Party) PSTN GW Remote Location Remote Location

Centurylink SIP Trunk

Voice Path

Provider

Edge Router

Sonus SBC Sonus SBC

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15 Transport Diversity - Failover & Load Balancing

Protects You from a last mile failure

 IP Transport at a backup site

 Customer can maintain Centurylink SIP

Trunks from multiple sites

- Customer may also connect a single

site to redundant SBC

 Separate Centurylink SIP Trunks are

treated as a trunk group

 Routing can be configured to load

balance or configured as primary and

secondary

 SIP TRUNK TNs can overflow to

customer’s other SIP TRUNK,but not to

PSTN local numbers

Centurylink VoIP

Network

Primary SIP Trunk Trunk Group

Centurylink VoIP

Network

PSTN

TDM Voice Network

HQ Sonus NBS Sonus NBS PSTN GW

Backup Location

Backup SIP Trunk Trunk Group

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Deployment Model - Decentralized

• Provide a SIP Trunking service at each

location.

• Customer branch offices have

their own SIP Trunk service

• E911 or V911 services are still provided

with local service

Benefits:

Direct access to PSTN from Each site

Survives a private WAN failure

Centurylink IP

Network

Provider

Edge Router

Centurylink SIP Trunk

(Over Centurylink iQ Networking Private

or Internet Port)

PSTN

TDM Voice Network

HQ

_{Private WAN} (Centurylink or 3rd_Party) PSTN GW Remote Location Remote Location

Centurylink SIP Trunk

Voice Path

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Portal – Control Center

Control Center is the customer’s

self-service portal for SIP Trunk.

Functions available in Control

Center are:

Admin Capabilities

• VoIP Inventory

•Trunk Group Management

•Route Plan Management

•Telephone Number

Management

•RDID Number Management

•Trouble Ticketing

•Primary Place of Use

Management

User Capabilities

•V911 Emergency Address

Management

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Interoperability Testing

Available for IP voice products to test interoperability prior to installation of order

–

No charge!

–

Option to connect via Centurylink Internet access or through peering across the public

Internet

–

Test port open 24/7 for ten business days (unless otherwise notified)

–

Due to the differences between SIP REFER call types, all customers who plan to use

SIP REFER with Centurylink iQ

®

_{SIP Trunk service must participate in this testing of the}

Centurylink iQ SIP Trunk service to confirm that their particular SIP REFER

implementation works with the service

High-level pre-testing guidelines

–

Must complete network interface questionnaire and testing agreement prior to test

scheduling

–

Queue for test provisioning; test environment is available for 10 business days,

extensions are available upon request

–

Provisioning support during normal working hours of 8 a.m. to 5 p.m. EST

–

Customer defines tests and runs; assistance provided by Account Team and National

Technical Support organization upon request

–

After test period, the port will be closed

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