Pr Voip Network Architecture and Call Flows Presentation en Xg

8/4/2019 Pr Voip Network Architecture and Call Flows Presentation en Xg

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VoIP provided by Verizon Business Services. All services may not be available in all areas. © 2006 Verizon. All Rights Reserved.

Verizon Voice over IP (VoIP)Verizon Voice over IP (VoIP)

Network Architecture and Call FlowsModuleNetwork Architecture and Call FlowsModule



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PROPRIETARY STATEMENT

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This document and any attached materials are not to be disseminated, distributed, or otherwiseconveyed throughout your organization to employees without a need for this information or to

any third parties without the express written permission of Verizon.



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SIP ApplicationServers

Verizon VoIP Customer ArchitectureVerizon VoIP Customer Architecture

NetworkGateway

PSTNPhone

PSTNPhone

T1/DSL

Customer PremisesLook! No PBX!

LAN

PSTNPhone

PSTNPhone

Router/Gateway

RedirectServers

Customer Premises

LAN

SIP Phone

SIP Phone

Verizon

Switchnet

IBM Voicemail

Firewall

SIP Phone

SIP Phone

IntegratedRouter/Firewall

with QoS

PBX

NetworkSIPServers

Verizon DataCenter

Internet orPrivate IP



4

IDA

PSTNPhone

On-NetDSL

VoIP Network ArchitectureVoIP Network Architecture

IASA Web-Based OperationsSupport System

VerizonInternet

PrivateIP

DSL

CustomerNetwork

LocalGateways

NS(SIP Server)

RS(Redirect Server)

BroadsoftServers

IBMMessageCenter

VerizonSwitchnet

Juniper ERXw/QoS

Blizzard CardCisco Edge

Router

PSTNPhone

NetworkGateways

VoicemailGateways

Verizon VoIPInterconnect

Node

Customer

CustomerCustomer

Customer Customer



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Web-BasedOperations

Support System

Animated Call Path: IP Phone to IP PhoneAnimated Call Path: IP Phone to IP Phone

Customer PremisesCustomer Premises

NetworkGateway

IPPhone

LAN

SIP Signaling

Voice Path

Verizon

Switchnet

RedirectServer

SIPServers

PSTNPhone

T1/DSL IPPhone

LAN

VerizonData CenterIP Network

Internetor

Private IP

IntegratedRouter/Firewall

with QoS

IBM Voicemail

Integrated

Router/Firewallwith QoS



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Customer PremisesCustomer Premises

Animated Call Path:IP Phone to PSTN PhoneAnimated Call Path:IP Phone to PSTN Phone

Web-BasedOperations

Support System

IPPhone

LANIP

Phone

LAN

SIP Signaling

Voice Path

PSTNPhone

T1/DSL

RedirectServer

SIPServers

NetworkGatewayIntegrated

Router/Firewall

with QoS

IBM Voice Mail

Integrated

Router/Firewallwith QoS

Verizon

Switchnet

VerizonData CenterIP Network

Internetor

Private IP



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SIP Phone RegistrationAssociates the Phone With an IP Address

SIP Phone RegistrationAssociates the Phone With an IP Address

4

3

OK

REGISTER sphone-cck-117@ns1to location 116.34.10.18

REGISTER etc.

Network

Server

Redirect Server

1

OK2



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IP Phone to IP Phone CallingSIP Signaling Is Used to Establish the Call

IP Phone to IP Phone CallingSIP Signaling Is Used to Establish the Call

SIP [email protected]

INVITE [email protected]

Default for [email protected] sphone-cck-117@ns1,which is registered at 116.34.10.18

Subsequent packetizedvoice (RTP) path

Subsequent signaling path

Redirect Server

Network

Server

5

4

3

1

2INVITE...

SIP PhoneSIP Phone



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Using SIP to Terminate to the PSTNUsing SIP to Terminate to the PSTN

INVITE...300-MultipleChoices, X, etc.

INVITE 19727291234@X...

Subsequent packetizedvoice (RTP) path

Subsequent signaling path

512-1234 > 19727291234Network-gwy-IP-addr X, etc.

INVITE 512-1234@…VIA Z...

Class 3 Switch

9727291234

Network

IP Com GWY

X

Enterprise

IP Com GWY

Z

5

4

3

1

2

Redirect Server

Network

Server

PBX

512-1234



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For More InformationFor More Information

• To speak to a Verizon Representative about whether Verizon VoIP is right

for your business:

– Fill out a consultation form athttp://mediumbusiness.verizon.com/products/voice/ip_centrex.aspx

Or

– Call 1-800-201-1452, press 2

Pr Voip Network Architecture and Call Flows Presentation en Xg

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