标准号:ITU-T Q.761 AMD 4-2009
实施状态:现行
中文名称:NO.7信令系统.综合业务数字网(ISDN)用户部分的功能描述.4号修正案.支持自定义报警音(CAT)业务.11号研究组
英文名称:Signalling System No. 7 �C ISDN user part functional description Amendment 4: Support for the customized alerting tone (CAT) service (Study Group 11)
发布日期:2009
标准简介:Amendment 4 to Recommendation ITU-T Q.761 was produced to meet the need for the implementation of the customized alerting tone (CAT) service as specified in ETSI TS 123.205 (2009-07). It contains the modifications to Recommendation ITU-T Q.761 (1999) in order to accommodate these needs. This amendment should be read in conjunction with the related amendments to Recommendations ITU-T Q.762 and Q.763.
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(以上信息更新时间为:2019-11-26)
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