jose maría fontanillo muñiz mailto: [email protected] jabber-id: [email protected]
DESCRIPTION
CERN 12 de Feb 2.004. CSSM Working Group. Jose María Fontanillo Muñiz mailto: [email protected] Jabber-id: [email protected] GDS: 0034 1000 001 http://www.rediris.es/mmedia RedIRIS. GDS. Global Dialling Scheme Numbering plan H.323 gatekeeper: - PowerPoint PPT PresentationTRANSCRIPT
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mmedia
Jose María Fontanillo Muñizmailto: [email protected]: [email protected]: 0034 1000 001http://www.rediris.es/mmediaRedIRIS
CERN12 de Feb 2.004
CSSM Working Group
CSSM Working Group
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2Jose María Fontanillo Muñiz – [email protected] CERN 2004
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.
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3Jose María Fontanillo Muñiz – [email protected] CERN 2004
GDS
RASRTP / RTCP
H.225.0
H.245
H.323 Application
TCP-UDP/IP
• 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
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5Jose María Fontanillo Muñiz – [email protected] CERN 2004
GDS
GK Mundial
GK Mundial
GK EEUUGK EEUUGK HolandaGK HolandaGK EspañaGK España
UC3MUC3M UIBUIB ......
GK DirectorioGK Directorio
GK InstitucionesGK Instituciones
UnIYUnIY
00341001001003410010010031123400100311234001
00340034 00310031
1001100110021002
12341234
001001
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6Jose María Fontanillo Muñiz – [email protected] CERN 2004
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
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7Jose María Fontanillo Muñiz – [email protected] CERN 2004
GDS-Prefixes
Prefix Institution
1000 RedIRIS
1001 UC3M
1002 UIB
1003 CESGA
1004 UM
1005 UPC
1006 XTEC
1007 IFAE
1008 ESADE
... ...
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8Jose María Fontanillo Muñiz – [email protected] CERN 2004
GDS-Our Implementation
• Cisco 2600 router with the MCM extension of IOS as national gatekeeper
• Gnugk (www.gnugk.org) as gatekeeper for our endpoints
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9Jose María Fontanillo Muñiz – [email protected] CERN 2004
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 worldExample 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