AT&T IP Toll-Free ServiceQuality of Service and security features for AT&T VoIP AT&T Internal MPLS...
Transcript of AT&T IP Toll-Free ServiceQuality of Service and security features for AT&T VoIP AT&T Internal MPLS...
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
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AT&T IP Toll-Free Service
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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
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• 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
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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
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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)
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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
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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
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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
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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