VOIP Project at MIX

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VOIP Project at MIX Status Update Mauro
Magrassi mauro.magrassi_at_mix-it.net
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VOIP Project Background

• Conceptual thinking 2005, project starts in 2006
• Infrastructure Eco-system beneficial to VOIP
  peering adoption/growth
• Bring new potential Operators into NAPs aside
  ISPs
• Facilitate VOIP interconnection between large and
  small VOIP players
• Hard to burst new services on VOIP without
  critical mass

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Issues

• Huge Inertia of VOIP-TDM-VOIP interconnection
  solutions on technical side
• Huge Inertia in changing Accounting and Billing
  Systems
• Market still highly consolidated and not keen to
  move
• Lack of stable VOIP interconnection standards
  (VOIP signaling, cross-border IP QoS etc. )
• Regulation aspects (lawful intercept nightmare ,
  log retention, unclear government position,
  license fee schemes)
• Huge difference in nature between VOIP players
  (NGN networks Infrastructure-based Vs. ISPs
  Internet-based)

4
Stillwhy not Open Internet (and then through
IXP)

• Common DoS ping flood, smurf, PoD
• Layer 4 attacks syn udp flood, queue overflows
• Layer 5 attacks buffer overflows over
  application stacks of signalling protocols
• Intra-provider QoS

5
Project Testing Phase 2006

• Several different Interconnection Scenarios
  strategy
• Testing activity Focus on basic voip services
  interoperability tests
• Huge debate on Numbering (geographical, 6, 5)
• Carrier ENUM introduction
• DTMF and T.38 initial testing
• Monitoring, management and accounting support
  platforms testing
• Project Dissemination

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2006 Approach
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2006 Approach

• Several ways to interconnect flexible but
• Hard to scale
• Not easy to manage
• Replicating MIX basic services

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Project Status (March. 07)

• 12 Voip Providers connected
• Eutelia Infracom TLC
• Netscalibur KPNQwest Italy
• Intercom I.net NGI
• ULI Fastweb
• Tiscali McLink
• Metrolink Elitel

9

VOIP_at_MIX 2007 progress

• Make it simpler define only one
  interconnection scenario where each Voip network
  interconnects to the MIX shared SBC cluster via a
  dedicated REALM

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REALM

• MIX Nextone SBC can be configured in a
  multi-tenant scenario
• The Realm is the cornerstone feature a virtual
  (802.1q) or physical port can be associated to a
  given voip network, a signaling gateway and a
  media gateway ip can be dedicated on the SBC for
  that network using IP addresses belonging to that
  backbone a default gateway over the network has
  to be provided to the Realm virtual routing
  instance
• One-fits-all, and also nomadic players (ISP) are
  facilitated

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New Stuff

• Dedicated Switching Environment
• Prefix based routing convention based upon AIIP
  (Italian National Internet Provider Association)
  Opcode
• Management Platform Testing
• FOCUS facilitate interconnection between big
  players and Small-medium ISP (regionals, WISP
  etc.)

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VOIP _at_ MIX Scenario
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Nomadic Services Scenario
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New VOIP _at_ MIX Advantages

• Full IP decoupling between connected networks
• For members, (can be) only configware
• Fits well the shared ethernet nature of an IXP
• Nicely follows a buy then make growth model for
  VOIP (so that scalability should not be our
  biggest issue)
• Very flexible, still with respect to 2006 version
  
• Allows IXP to remain a point
• No Ip routing whatsoever
• QOS handling decoupled and facilitated between
  different backbones
• Helpful for the Nomadic service providers

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Costs

• Simple scheme
• Infrastructure Costs (one off)
• VOIP Traffic management costs (recurring)
• Infrastructure costs switch port(s), VLANs, SBC
  Realms
• Traffic costs A fee based upon simultaneous
  calls license
• Still, SBC to SBC is possible, but is already a
  MIX std service.

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Traffic Costs Tier approach
License for N simultaneous calls every technical
feature on signaling manipulation available
excluding any form of media transcoding, are
defined as follows I. Tier 0 10 simultaneous
calls II. Tier 1 30 simultaneous calls III. Tier
2 50 simultaneous calls IV. Tier 3 70
simultaneous calls V. Tier 4 100 smultaneous
calls
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2007 Costs

• Infrastructure 120 euro per month, free for IP
  peering members
• Price per simultaneous call
• Tier 0. 2,70 Euro /m
• Tier 1. - 2,65 Euro / m
• Tier 2 - 2,60 Euro / m
• Tier 3. - 2,50 Euro / m
• Tier 4. - 2,40 Euro / m

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Developments

• Interoperability of SIP presence, instant
  messaging and IP videocalls
• Stable support for DTMF, T.38 and data calls over
  Voip
• CDR Neutral Accounting
• Emergency Numbers access from Nomadic VOIP users
• Long Distance web marketplace
• Centralized VOIP Lawful Intercept (?)

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Thank you!

• Web www.mix-it.net
• General info info_at_mix-it.net
• Adminstration sg_at_mix-it.net
• Tech Dept noc_at_mix-it.net
• Tel [phone]
• Fax [phone]