Presentation for <<Customer>>

AT&T IP Toll-Free Service

Topics Covered

• AT&T Voice over IP

• Customer solutions

• AT&T IP Toll-Free Service

⁃ Capabilities and features

⁃ Features

⁃ Network resiliency

• Moving forward

2

AT&T IP Toll-Free Service

3

Enterprise grade Inbound Voice over Internet Protocol (VoIP) calling service delivering toll-free calls to your sites using Session Initiation Protocol (SIP) over the AT&T Multiprotocol Label Switching (MPLS) network

Included Capabilities:

• IP Features

• Toll-Free Advanced Features

• IP Toll-Free

• IP Transport ⁃ AT&T VPN Service

⁃ AT&T Dedicated Internet

IP Toll-Free Customer Solutions

4

• AT&T has significant SIP experience and a broad SIP-based portfolio

• IP Toll-Free supports customers across industries and segments

• Customers typically choose IP Toll-Free for:

⁃ Reduced total cost of ownership

⁃ Centralization and consolidation through big SIP trunks

⁃ Call compression – more calls per trunk

⁃ Scaling for peaks

⁃ Full IP-enablement – IP Features and Futures

5

AT&T IP Toll-Free Service800 Advanced Features

(NCP)SIP Features

(SIP Application Server)

PSTNLocal, International

AT&T GlobalMPLS Network

Network GatewayBorder Element

4ESS 4ESS PSX

Center 2

Center 1

1-8YY

CallingParty

SIPTrunk

IPBE

AT&T VPN or Dedicated

Internet Svc

AT&T or Customermanaged Router*

Agents

AgentsPBX

IP Border Element IVR

NGBE

PBX

Integrates seamlessly with traditional AT&T toll-free services

• Integrates seamlessly with traditional AT&T toll-free services

• Use Call Allocator to load balance between PSTN and IP terms

• Use RouteIT and BusinessDirect to manage both PSTN and IP terms

• Continue to use Alternate Destination Routing (ADR) for failover or Transfer Connect to move calls from one site to another*

• IP Toll-free supports US calling, Canada calling, US/Canada-to-Intl. calling, and Intl-to-US calling

6* IP Toll-Free on Alternate Destination Routing (ADR) is available with AT&T-managed routers only

6

Delivering key capabilities

Fully integrated IP toll-free service with routing across TDM and VoIP end-points with advanced feature capabilities

• IP Courtesy Transfer (Post-Answer

Transfer)

• IP Redirect (Pre-Answer Transfer)

• IP InfoPack – Call Information Delivery

and optional Data Forwarding*

• Standard Svc: CPN, DNIS or DN

• InfoPack: CPN, BN/ANI, DNIS, DN, OLI, UUI

Key IP transfer connect features

• G.711, G.726, G.729A and G.729B to

enable voice compression

• Call-by-call codec negotiation

• e.g. use G.711 for Speech Recognition

calls, G.729 for Touchtone or Agent calls

Supports multiple CODECS to maximize call volume throughput

* CPN – Calling Party Number, BN/ANI – Billing Number, DNIS – Dialed Number Identification Service, DN – Dialed Number, OLI – Originating Line Information (cell phone, hotel, payphone etc), UUI – User to User Information (Avaya CPE only)

7

Traditional featuresTraditional features supported• Call routing features like Time and

Day Manager, Area Code Routing, Call Allocator, etc.

• Announcement features like Call Prompter, En route Announcements, Courtesy Response, etc.

• Redirection features like Alternate Destination Routing, Transfer connect (Courtesy, Consult, Conference – in-band, without data forwarding)

• Customer routing control features like Route It! (excludes self Provisioning), Routing on Demand, etc.

• Next Available Agent Routing, Network Queuing

8

AT&T VoIP Network Resiliency

IPBEIPBEIPBEIPBE

IPBEIPBE

NGBE

NGBE

PSTN

IPBE

NGBE

All IPTF service is at least dual-provisioned on physically & geographically diverse IP Border Elements (IIPBEs)

Customer Premises

Customer Premises

APP SRVR

Network Gateway Border Elements (NGBEs) connect via multiple paths to the 4E network (PSTN)

Network Elements have physical redundancy and geographic diversity

SIP Trunks: T1, T3, Frac.T3, Ethernet, OCX with AT&T VPN Service, or AT&T Dedicated Internet Service

50% 50% Multiple Access Circuits can be managed with:a) Call Allocator (manage

allocations online)b) IP-ADR –automatic site failoverc) ADR - automatic site failover

(including failover to PSTN sites)d) BGP-R Call Failover &

Preservation

9

Quality of Service and security features for AT&T VoIP

AT&T Internal MPLS VPN Voice Aware NetworkProvides network protection and Quality of Service (QoS) for AT&T VoIP communications within the AT&T Trusted Domain

AT&T hub-and-spoke MPLS VoIP PN for Customer AccessProvides security and QoS for AT&T VoIP communications through the network to the AT&T VoIP Network Elements

AT&T MPLS VPNProvides security features and QoS for customer data communications

AT&T VoIP Network

Border Elements

NetworkGateways

Internal MPLSVoice VPN

Border Elements

Hub-&-spokeMPLS VoIP VPN

PSTN

AT&T MPLS Network

MPLS DataVPNs

10

AT&T IP Toll-FreeKey takeaways• Simplicity and Savings from Network

Convergence & Call Compression

• Current & future innovative SIP features (e.g. SIP Refer, SIP Redirect)

• Supports Hybrid (TDM and IP) network with Advanced Features

• Pre-certified for interoperability across a broad range of CPE vendors

• Supports billions of IP Toll-Free production minutes each month

⁃ Across various customer sizes and applications

(contact center, fax, conferencing, etc.)

• Rides on AT&T’s high performance MPLS IP Backbone network