SIP Trunking

SIP TRUNKING

Today’s Agenda

Introductions

What is a SIP Trunk

Ideal Environments

Challenges

Cost Components

Summary/Questions

Representative of All the Major CarriersVoice/Data/InternetCreative, Value Driven Network SolutionsDesign/Implementation/On-Going Support

Single Point of Contact

A SIP (Session Initiation Protocol) connection is a service offered by many ITSP (Internet Telephony Service Providers) that connects a company's PBX to the existing telephone system infrastructure (PSTN) via Internet using the SIP VoIP standard.

Originally Designed in 1996Standards Formulated in 2000 (IETF)*Commonly Utilized by Carriers

* IETF - Internet Engineering Task Force

IP Telephony Today

TDM – Time Division Multiplexing

SIP Overview

Internet`

` Inbound Calls

Back UpLine(s)

SIP Trunks

Remote Site(s)

DataNetwork

TelephoneSystem

Outbound Calls

SIP Gateway

ITSP

Central Site

Types of SIP

Naked SIPBundled AccessIntegrated Access

VoiceData Internet

SIP Interface Methods

EthernetISDN PRIAnalog Lines

SIP Interface Methods

Internet`

` Inbound Calls

SIP Trunks

TelephoneSystem

Outbound Calls

SIP Gateway

ITSP

ISDNPRI

AnalogLines

Ethernet

SIP Misconceptions

VoIP vs. SIPCalls Are NOT Free

SIP Key Benefits

Virtual Telephone NumbersReduced Telephone System Equipment

Business ContinuityFlexible Trunk Quantities

SIP ConsiderationsSystem CompatibilityTelephone System VendorSIP AvailabilityAdditional Bandwidth RequirementsData/WANInternet32 to 80 Kbps per Concurrent Voice

Channel

Hybrid Solutions

Ideal Environments for SIP

Multiple LocationsRelocationsSeasonal RequirementsFunctionality/Features

Multiple Locations - Current View

Multiple Locations - SIP View

Internet`

` Inbound Calls

Back UpLine(s)

SIP Trunks

Remote Site(s)

DataNetwork

TelephoneSystem

Outbound Calls

SIP Gateway

ITSP

Central Site

SIP Benefits – Multiple Locations

Centralized Call FlowStaff Reduction/ReassignmentTrunk ReductionBusiness Continuity

Ideal Environments – Relocations

Telephone Number PortabilitySubstitute for Expensive RCF Charges

Pre Assign Telephone NumbersTrunking Predictions

Seasonal Challenges

Variant Call FlowTime of DayTime of Year

Busy Signals/Unavailable Outbound Lines

Expensive Line Charges

StartingHour Out In In/Busy Out In In/Busy Out In In/Busy Out In In/Busy Out In In/Busy

8:00 0 34 0 5 22 0 0 28 0 0 28 0 3 14 09:00 32 136 0 44 124 0 24 111 0 34 124 0 36 111 010:00 55 189 0 66 155 0 54 151 0 56 162 0 57 176 211:00 80 173 0 65 221 20 69 184 0 64 190 0 80 175 012:00 74 190 0 61 173 0 63 203 2 68 164 0 64 180 1413:00 68 180 5 56 200 0 49 179 0 40 166 0 47 160 014:00 62 211 5 40 225 28 53 234 36 67 174 1 27 196 015:00 60 208 8 88 178 0 35 209 17 67 187 0 48 160 016:00 60 189 2 73 200 0 55 234 43 70 217 19 49 171 117:00 44 147 0 37 110 0 47 87 0 21 104 0 11 96 118:00 18 47 0 16 73 0 10 50 0 17 58 0 9 46 0

Total 553 1,704 20 551 1,681 48 459 1,670 98 504 1,574 20 431 1,485 18

Monday Tuesday Wednesday Thursday Friday

Call Flow Example

Ideal Environments – Seasonal

Dynamic Call PathsBandwidth on DemandReduced Hardware

Ideal Environments Functionality/Features

Direct Inward Dialing (DID)Trunk FlexibilityMulti Functional Access

VoiceDataInternet

SIP Challenges

Fax/Modem Traffic911/Emergency CallsVoice QualityFirewallsLocal Area NetworkTrouble Shooting

SIP Cost ComponentsAccess

Bandwidth

SIP TrunkTelephone Numbers

Usage PlansLocalLong Distance

EquipmentTelephone SystemGateway/Interface

EquipmentLAN/Firewall/Router

Internet Inbound Calls

SIP Trunks

TelephoneSystem

Outbound Calls

SIP Gateway

ITSP

ISDNPRI

AnalogLines

Ethernet

Bandwidth/Access

SIP Trunks

Calling Plans

Summary

SIP Is NOT for EveryoneCompare SIP ProvidersVery Dynamic Marketplace

Questions

Thank You!