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ETSI TR 125921-V3.5.0
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Universal Mobile Telecommunications System (UMTS); Guidelines and Principles for protocol description and error handling (3GPP TR 25.921 version 3.5.0 Release 1999)
Standard published on 30.9.2001
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ETSI TR 125921-V3.6.0
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Universal Mobile Telecommunications System (UMTS); Guidelines and Principles for protocol description and error handling (3GPP TR 25.921 version 3.6.0 Release 1999)
Standard published on 31.12.2001
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ETSI TR 125921-V3.7.0
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Universal Mobile Telecommunications System (UMTS); Guidelines and Principles for protocol description and error handling (3GPP TR 25.921 version 3.7.0 Release 1999)
Standard published on 31.3.2002
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ETSI TR 125921-V3.8.0
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Universal Mobile Telecommunications System (UMTS); Guidelines and principles for protocol description and error handling (3GPP TR 25.921 version 3.8.0 Release 1999)
Standard published on 31.12.2002
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ETSI TR 125921-V3.9.0
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Universal Mobile Telecommunications System (UMTS); Guidelines and principles for protocol description and error handling (3GPP TR 25.921 version 3.9.0 Release 1999)
Standard published on 30.9.2003
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ETSI TR 125921-V4.0.0
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Universal Mobile Telecommunications System (UMTS); Guidelines and principles for protocol description and error handling (3GPP TR 25.921 version 4.0.0 Release 4)
Standard published on 31.3.2001
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ETSI TR 125921-V4.1.0
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Universal Mobile Telecommunications System (UMTS); Guidelines and principles for protocol description and error handling (3GPP TR 25.921 version 4.1.0 Release 4)
Standard published on 19.7.2001
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ETSI TR 125921-V4.2.0
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Universal Mobile Telecommunications System (UMTS); Guidelines and principles for protocol description and error handling (3GPP TR 25.921 version 4.2.0 Release 4)
Standard published on 30.9.2001
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ETSI TR 125921-V4.3.0
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Universal Mobile Telecommunications System (UMTS); Guidelines and principles for protocol description and error handling (3GPP TR 25.921 version 4.3.0 Release 4)
Standard published on 31.12.2001
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ETSI TR 125921-V4.4.0
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Universal Mobile Telecommunications System (UMTS); Guidelines and principles for protocol description and error handling (3GPP TR 25.921 version 4.4.0 Release 4)
Standard published on 31.3.2002
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