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Opal SIP Trunks. Greg Zweig Sonus Networks Product Management. July, 2010

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Opal SIP Trunks

Greg Zweig

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 Traditional copper telephone trunks  A broadband

connection provides data services

 The providers for voice and data are often different

 Voice trunks are often segregated based on dedicated functions

Legacy Enterprise Deployment

ISDN or Analog lines PBX/ IP-PBX Separate LAN/Data Network Fax Data Voice Gateways Gateways

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What is the State of the Enterprise?

 Cisco, Avaya, Microsoft, Mitel & Nortel have successfully sold the

value of IP-PBXs

IP is only intra enterprise

 Still ISDN to the Service Provider

 Enterprises often have a “hodgepodge” of solutions within the

corporation

 Multiple vendors due to mergers or acquisitions  Specialized vendors for call center, etc

 Single vendor but mix of TDM & IP sites

 Single vendor with different software releases  H.323 and SIP with the migration to SIP

 Pressure to reduce costs

 Improve margins

 Need to prove synergies from corporate mergers

 Looking for partners that will help them deploy complex

technology without risking their business

Enterprises are forced to cook up solutions

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 The copper voice is replaced with a broadband SIP Trunk  A single broadband connection, with

QoS, provides voice and data connectivity from a single

provider

 Bandwidth can be better utilized and shared

Converged SIP Deployment

IP-PBX SIP Trunk Fax ATA ATA Combined Voice and Data

Network Combined Voice and Data

Network Service

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 Eliminates premise gateway hardware costs

 Leverage buying power from one bandwidth provider  Federate services between sites (master dial plan)  Purchase only the channels required

 Support high definition audio

 Support mobile phone integration

 Acquire enhanced hosted services from the network

 Conferencing

 Hosted Contact Center

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 SIP phones are in the official app store

Mobile Services for SIP Trunks

 Android OS gives

Google even more opportunity to

commoditize voice

 Cisco & Avaya let you connect via office PBX

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Hosted Unified Communications

Unified Unified Communications Communications Instant Instant Messaging Messaging Presence Presence Click to Dial Click to Dial Telephony Telephony Management via ICP Management via ICP

Call Control Call Control Calendar Calendar Contact Lists Contact Lists

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Enterprise Interoperability Lab

 Real World Network Deployment Experience

 Multiple deployments in Tier 1 Service Providers

 Connectivity via 10’s of thousands of PRIs and SIP Business Trunks to PBXs of all types

 Sonus IP-PBX Lab:

 Cisco: Call Manager 4.x (Windows) & CM 6.x (Linux)  Cisco: Call Manager Express

 Avaya: Communications Manager & IP Office  Nortel: BCM 50 & CS1K

 Asterisk

 End-to-End Solution Testing with Sonus NBS

 Testing SIP Trunking as a PRI replacement  Multi-vendor PBX-to-PBX

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 What do I have?

 PBX, router & firewall models & software releases

 IP-PBX or Gateway to convert (e.g. Audio Codes, Mediatrix, Grandstream, Cisco, etc)

 Router with QoS (Cisco, juniper, HP, etc)

 SIP Aware Firewall? (Ingate or Edgewater, Cisco, Juniper)  Trained VAR

 Ask for references

 Be sure you get a trained technician (not excuses)

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 Number portability may be slow

 Schedule ahead (especially when if you are moving locations)

 It may be reassuring to migrate trunks over time

 Many ways to mitigate risk  You have to plan

 The amount of disruption will be inversely proportional to the planning and coordination of service providers and vendors  Research your vendor choices

 Select value over price

 Time is often more important than money

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 Infonetics Research surveyed 92 North American organizations

 October 2009 report

 101 or more employees with both PBXs and key telephone

systems

 Respondents had detailed knowledge of their organization’s PBX

trunking services

 And have influence over the planning and purchase decision-making process for PBX trunking

 The typical survey respondent organization spent between $100

thousand and $500 thousand per year on trunking services

 39% of survey respondents have already deployed SIP trunking  Respondents are deploying SIP trunking widely across their

organizations, and not just trialing at one or a few sites

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 SIP Trunking is expected to grow at 53% CAGR from 2009 to 2014 – Source Infonetics March 2010

 IDC predicts a compound annual growth rate (CAGR) of 80.2% from 2008 to 2013 (for lines) and revenue is comparable, at just about 77%

Growth Worldwide

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ISDN30 Today

BT Feature ISDN30 ISDN30e

Calling Line Identity Presentation (CLIP) Yes Yes

Presentation Number Yes Yes

Calling Line Identity Restriction (CLIR) Yes Yes

Connected line Identity Presentation (COLP) No Yes

Connected Line Identity Restriction (COLR) Yes Yes

Administration provided Basic Diversion –

voice only Yes No

Administration provided Diversion on Busy or

failure of BT bearer – voice only Yes No

Administration provided set up Call

Forwarding for all calls – voice only No Yes

Administration set up Call Forwarding on

Busy – voice and data No Yes

Administration set up Call Forwarding on No

Reply – voice and data No Yes

Administration provided permanent Outoing

Call Barring (OCB) Yes Yes

Customer Controlled Services* Diversions – not available across DDI (Basic,

Busy/failure, Ringtone No Reply) Yes No

Channel Busying Yes No

Call Barring Yes No

Customer controlled Call Forwarding No Yes

Administration provided Selective Outgoing Call Barring on:

•All calls

•International Calls and Premium Rate Services (PRS)

•National, International calls and PRS

•Operator calls

•International, Operator calls and PRS.

Yes Yes

Call Charge Indication Yes No

Sub Addresses Yes

(6 octet)

Yes (20 octet)

ISDN30 uses the BT signaling system DASS2 (no longer offered to new customers)

ISDN30e uses the Q931 signaling system which conforms to the worldwide ITU-T standard.

The Calling Features on these systems are different, as shown in the table.

ISDN30 uses the BT signaling system DASS2 (no longer offered to new customers)

ISDN30e uses the Q931 signaling system which conforms to the worldwide ITU-T standard.

The Calling Features on these systems are different, as shown in the table.

 BT charges about £15 per month per channel

 Typically £1,500 to £2,300 per ISDN30 install

 Most competition is resale of BT service

References

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