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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 mar a fontanillo mu iz 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


Jose mar a fontanillo mu iz mailto jmaria fontanillo rediris es jabber id fonta im rediris es
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.


Jose mar a fontanillo mu iz mailto jmaria fontanillo rediris es jabber id fonta im rediris es

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



Jose mar a fontanillo mu iz mailto jmaria fontanillo rediris es jabber id fonta im rediris es
GDS

GK

Mundial

0031

001

0034

GK España

GK Holanda

GK EEUU

GK Directorio

1001

1002

UC3M

1234

GK Instituciones

UIB

...

UnIY

00341001001

00311234001


Jose mar a fontanillo mu iz mailto jmaria fontanillo rediris es jabber id fonta im rediris es
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



Gds our implementation
GDS-Our Implementation

  • Cisco 2600 router with the MCM extension of IOS as national gatekeeper

  • Gnugk (www.gnugk.org) as gatekeeper for our endpoints


Gds applications
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