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Jose María Fontanillo Muñiz mailto: Jmaria.fontanillo@rediris.es Jabber-id: fonta@im.rediris.es

CERN 12 de Feb 2.004. CSSM Working Group. Jose María Fontanillo Muñiz mailto: Jmaria.fontanillo@rediris.es Jabber-id: fonta@im.rediris.es GDS: 0034 1000 001 http://www.rediris.es/mmedia RedIRIS. GDS. Global Dialling Scheme Numbering plan H.323 gatekeeper:

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Jose María Fontanillo Muñiz mailto: Jmaria.fontanillo@rediris.es Jabber-id: fonta@im.rediris.es

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  1. CERN 12 de Feb 2.004 CSSM Working Group Jose María Fontanillo Muñiz mailto: Jmaria.fontanillo@rediris.es Jabber-id: fonta@im.rediris.es GDS: 0034 1000 001 http://www.rediris.es/mmedia RedIRIS

  2. GDS • Global Dialling Scheme • Numbering plan • H.323 gatekeeper: • Optional element in H.323. • Mandatory functions: address translation, admision control, bandwith control and zone management • Optional functions: call authoritation, call management, bandwith management and call control signalling.

  3. H.323 Application RTP / RTCP RAS H.245 H.225.0 TCP-UDP/IP GDS • An H.323 Gatekeeper can work in several ways: • Only Location (LRQ, LCF and LRJ) without endpoints registered<- directory • With endpoints registered and direct signalling between endpoints • Routing H.225/H.245 signalling • Proxy

  4. GDS

  5. GDS GK Mundial 0031 001 0034 GK España GK Holanda GK EEUU GK Directorio 1001 1002 UC3M 1234 GK Instituciones UIB ... UnIY 00341001001 00311234001

  6. GDS • Defines 00 as the international prefix. • It uses well known ITU international telephone prefixes: http://www.itu.int/itudoc/itu-t/ob-lists/icc/e164_717.pdf • The GDS also defines an alphanumeric dialplan :< station ID>@<fully qualified domain name of the institution> • Spanish national plan: <number> = [<escape prefix>] <international part> <national part> <international part>=0034 <national part> = <institution prefix><endpoint number>[<sufix>] <endpoint number> = nnnn

  7. GDS-Prefixes

  8. GDS-Our Implementation • Cisco 2600 router with the MCM extension of IOS as national gatekeeper • Gnugk (www.gnugk.org) as gatekeeper for our endpoints

  9. GDS-Applications • ¿why? • Makes independence the id of terminal IP • More easy multiconference using an MCU, you only need to dial a number • It can be used to videoconference and VoIP • Is the facto standard numering plan in research and academic world Example you can have your GDS number that can follow you , when you are in your office and you have bandwidth you can use your videoconference system, sometimes with a gateway you can redirect the call to a cellular telephone, sometimes to a IP phone in your house, etc

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