TF-VVC Activity Area K: IP Telephony Deployments

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1 TF-VVC Activity Area K: IP Telephony Deployments Dr. Saverio Niccolini Research Staff Member Network Laboratories, NEC Europe Ltd. (saverio.niccolini@netlab.nec.de)

2 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 TNC POZNAN - JUNE

3 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 TNC POZNAN - JUNE

4 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 TNC POZNAN - JUNE

5 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 TNC POZNAN - JUNE

6 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 TNC POZNAN - JUNE

7 Setting up SIP.edu services 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 TNC POZNAN - JUNE

8 That s all! Questions? VoIP TNC POZNAN - JUNE