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TF-VVC Activity Area K: IP Telephony Deployments. Dr. Saverio Niccolini Research Staff Member now @ Network Laboratories, NEC Europe Ltd. ([email protected]). TF-VVC Activity Areas. Activity Area K: IP telephony deployments Work Items:

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tf vvc activity area k ip telephony deployments

TF-VVC Activity Area K:IP Telephony Deployments

Dr. Saverio Niccolini

Research Staff Member

now @ Network Laboratories, NEC Europe Ltd. ([email protected])

tf vvc activity areas
TF-VVC Activity Areas
  • Activity Area K: IP telephony deployments
    • Work Items:
      • Survey about the existing IP telephony deployments
        • leader - Saverio Niccolini, NEC Europe Ltd.
      • Recommendations on how to connect different nodes
        • leader - Saverio Niccolini, NEC Europe Ltd.
      • Setting up SIP.edu services
        • leader - Erik Dobbelsteijn, SURFnet

VoIP WS @ TNC2005 - POZNAN - JUNE 2005

survey existing ip telephony deployments
Survey: existing IP telephony deployments
  • Survey document is considered to be ready
    • document circulated in the mailing list and no more comments received
  • Questions about
    • details of the deployment
      • web-site
      • domains that are supported
      • compliance with SIP.edu
      • calling preferences (by URI, by number based dial plan)
      • linking of IP Telephony with the PSTN world (inbound/outbound)
      • usage of SRV records, NAPTR record
      • usage of ENUM (trees, prefixes)
      • usage of SW/HW (suggested or users free to choose)
      • dimension of the deployment itself (per protocol)
      • linking withH.323 GDS
      • usage of video in addition to voice
      • usage of FW/NAT traversal methods
      • legal issues implications (lawful interception: call details, wiretap)
      • consideration on security implications (DoS, SPIT, etc.)
      • usage of methods for authentication/authorization
      • usage of white pages or phone books

VoIP WS @ TNC2005 - POZNAN - JUNE 2005

survey existing ip telephony deployments1
Survey: existing IP telephony deployments
  • Problems:
    • is the Survey really interesting to TF-VVC?
      • if yes, I hope this Survey is already PERFECT because I have received really few comments!
      • if no, let’s drop it and save our time
  • Given that the Survey is interesting
    • I would like to find a way to reach the bigger audience possible
      • not only NRENs
      • also research institutions
      • also R&D related to industry (like the lab where I work)
    • Ideas on how to achieve such an objective (thanks to Egon)
      • Each TF-VVC member should take the responsibility to distribute this in its own constituency (I agree)
      • 4 ways (for each TF-VVC NREN and University representative)
        • send it yourself to the technical leads of deployment sites you know of;
        • send it to local mailing lists you know technical people with IP Telephony deployments are subscribed to;
        • send it to your general contact persons (this is not the preferred solution as many will stay unanswered because they land on the wrong desks);
        • if you are not the IP Telephony person, but are a participant in TF-VVC while your colleague is not, send it to the IP Telephony specialist in your own organization and ask him/her to send it to his/her contact persons.
      • Collect the answers and send them back to me
    • Let’s define some deadline otherwise the Survey will never be completed
      • it is about two months that the Survey is ready and no people doing anything about it (ignoring mail on the mailing list)

VoIP WS @ TNC2005 - POZNAN - JUNE 2005

recommendations on how to connect different deployments
Recommendations on how to connect different deployments
  • After the deployments are detailed in the Survey
    • What if people want to dial each other?
      • in the H.323 works there is VideNet and the Global Dialing Scheme (unified numbering plan for H.323 zones, including options to connect to PSTN, only in few places)
      • Something similar to H.323 GDS for the SIP world?
        • A SIP GDS (static routing) is the easiest way to start
      • Is ENUM the (only) way to go?
        • if yes, which ENUM hierarchy then (since there are many but not one golden one)?
          • ENUM (layer 9 problem) vs. private ENUM
      • Or is there something else?
        • what about using TRIP?

VoIP WS @ TNC2005 - POZNAN - JUNE 2005

recommendations on how to connect different deployments1
Recommendations on how to connect different deployments
  • Discussion started (but not finished)
    • Ben Teitelbaum (Internet2)
    • Stephen Kingham (AARNET)
    • Tyler Johnson (VideNet)
    • Erik Dobbelsteijn (SURFNET)
    • Egon Verharen (SURFNET)
  • Latest addition to the discussion
    • Wojciech Nawrot (PNSC)
    • Joao Pereira (FCCN)
    • Saverio Niccolini (NEC)
  • Is difficult to extend the discussion to an open mailing list
    • if you are interested contact me or Egon and we can try to introduce in the discussion updating you on the last results
    • once we have something that looks like reasonable we come to the TF-VVC mailing list and discuss the pros/cons

VoIP WS @ TNC2005 - POZNAN - JUNE 2005

setting up sip edu services
Setting up SIP.edu services
  • SIP.EDU (http://www.internet2.edu/sip.edu/)
    • we had a presentation from Ben Teitelbaum (Internet2)
    • All recommendations are on the web and easy to implement
      • contact Internet2 if you want to join
  • The idea is to move toward a SIP.e(d)u deployment
    • somehow evolving from SIP.edu
    • still in discussion (Erik Dobbelsteijn (SURFNET)) is the leader for this
    • some step forward already presented by SWITCH (SIP Infoday, January2005, Zurich)

VoIP WS @ TNC2005 - POZNAN - JUNE 2005

that s all
That’s all!

Questions?

VoIP WS @ TNC2005 - POZNAN - JUNE 2005

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