ITU-T G.108 Amendment 2 (03 2004) (英) Application of the E-model……

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1、INTERNATIONALTELECOMMUNICATIONUNIONITU-TG.108TELECOMMUNICATIONAmendment2STANDARDIZATIONSECTOR(03/2004)OFITUSERIESG:TRANSMISSIONSYSTEMSANDMEDIA,DIGITALSYSTEMSANDNETWORKSInternationaltelephoneconnectionsandcircuits–GeneraldefinitionsApplicationoftheE-model:Aplanninggu

2、ideAmendment2:NewAppendixII–Planningexamplesregardingdelayinpacket-basednetworksITU-TRecommendationG.108(1999)–Amendment2ITU-TG-SERIESRECOMMENDATIONSTRANSMISSIONSYSTEMSANDMEDIA,DIGITALSYSTEMSANDNETWORKSINTERNATIONALTELEPHONECONNECTIONSANDCIRCUITSG.100–G.199Generalde

3、finitionsG.100–G.109GeneralRecommendationsonthetransmissionqualityforanentireinternationaltelephoneG.110–G.119connectionGeneralcharacteristicsofnationalsystemsformingpartofinternationalconnectionsG.120–G.129Generalcharacteristicsofthe4-wirechainformedbytheinternatio

4、nalcircuitsandnationalG.130–G.139extensioncircuitsGeneralcharacteristicsofthe4-wirechainofinternationalcircuits;internationaltransitG.140–G.149GeneralcharacteristicsofinternationaltelephonecircuitsandnationalextensioncircuitsG.150–G.159Apparatusassociatedwithlong-di

5、stancetelephonecircuitsG.160–G.169TransmissionplanaspectsofspecialcircuitsandconnectionsusingtheinternationaltelephoneG.170–G.179connectionnetworkProtectionandrestorationoftransmissionsystemsG.180–G.189SoftwaretoolsfortransmissionsystemsG.190–G.199GENERALCHARACTERIS

6、TICSCOMMONTOALLANALOGUECARRIER-G.200–G.299TRANSMISSIONSYSTEMSINDIVIDUALCHARACTERISTICSOFINTERNATIONALCARRIERTELEPHONEG.300–G.399SYSTEMSONMETALLICLINESGENERALCHARACTERISTICSOFINTERNATIONALCARRIERTELEPHONEG.400–G.449SYSTEMSONRADIO-RELAYORSATELLITELINKSANDINTERCONNECTI

7、ONWITHMETALLICLINESCOORDINATIONOFRADIOTELEPHONYANDLINETELEPHONYG.450–G.499TESTINGEQUIPMENTSG.500–G.599TRANSMISSIONMEDIACHARACTERISTICSG.600–G.699DIGITALTERMINALEQUIPMENTSG.700–G.799DIGITALNETWORKSG.800–G.899DIGITALSECTIONSANDDIGITALLINESYSTEMG.900–G.999QUALITYOFSERV

8、ICEANDPERFORMANCE–GENERICANDUSER-RELATEDG.1000–G.1999ASPECTSTRANSMISSIONMEDIACHARACTERISTICSG.6000–G.6999DIGITALTERMINALEQUIPMENTSG.7000–G