Case 2:17-cv-00513-JRG Document 175-21 Filed 08/14/18 Page 1 of 4 PageID #: 7616
`Case 2:17-cv—00513-JRG Document 175-21 Filed 08/14/18 Page 1 of 4 PageID #: 7616
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`EXHIBIT 20
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`EXHIBIT 20
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`Case 2:17-cv-00513-JRG Document 175-21 Filed 08/14/18 Page 2 of 4 PageID #: 7617
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`3G TS 23.040 V1.0.0 (1999-05)
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`Technical Specification
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`3rd Generation Partnership Project;
`Technical Specification Group Terminals;
`Technical realization of the Short Message Service (SMS);
`Point-to-Point (PP)
`(3G TS 23.040 version 1.0.0)
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`The present document has been developed within the 3rd Generation Partnership Project (3GPP TM) and may be further elaborated for the purposes of 3GPP.
`The present document has not been subject to any approval process by the 3GPP Organisational Partners and shall not be implemented.
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`This Specification is provided for future development work within 3GPP only. The Organisational Partners accept no liability for any use of this
`Specification.
`Specifications and reports for implementation of the 3GPP TM system should be obtained via the 3GPP Organisational Partners' Publications Offices.
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`DEFS-AGIS-CC_000001
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`Case 2:17-cv-00513-JRG Document 175-21 Filed 08/14/18 Page 3 of 4 PageID #: 7618
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` 3G TS 23.040 version 1.0.0
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`2
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`3G TS 23.040 V1.0.0 (1999-05)
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`Reference
`DTS/TSG<name abbv>-0<WG no><spec no> U
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`Keywords
`<keyword[, keyword]>
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`3GPP
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`Postal address
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`3GPP support office address
`650 Route des Lucioles - Sophia Antipolis
`Valbonne - FRANCE
`Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
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`Internet
`http://www.3gpp.org
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`ETSI
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`DEFS-AGIS-CC_000002
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`Case 2:17-cv-00513-JRG Document 175-21 Filed 08/14/18 Page 4 of 4 PageID #: 7619
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` 3G TS 23.040 version 1.0.0
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`6
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`3G TS 23.040 V1.0.0 (1999-05)
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`Intellectual Property Rights
`IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
`pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
`in SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect
`of ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the
`ETSI Web server (http://www.etsi.fr/ipr or http://www.etsi.org/ipr).
`
`Pursuant to the ETSI Interim IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No
`guarantee can be given as to the existence of other IPRs not referenced in SR 000 314 (or the updates on the ETSI Web
`server) which are, or may be, or may become, essential to the present document.
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`Foreword
`This Technical Specification has been produced by the 3GPP.
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`The contents of the present document are subject to continuing work within the TSG and may change following formal
`TSG approval. Should the TSG modify the contents of this TS, it will be re-released by the TSG with an identifying
`change of release date and an increase in version number as follows:
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`Version 1.y.z
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`where:
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`x
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`the first digit:
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`1 presented to TSG for information;
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`2 presented to TSG for approval;
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`3 Indicates TSG approved document under change control.
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`y
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`the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates,
`etc.
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`z
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`the third digit is incremented when editorial only changes have been incorporated in the specification;
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`Introduction
`The Point-to-Point Short Message Service (SMS) provides a means of sending messages of limited size to and from
`GSM mobiles. The provision of SMS makes use of a Service Centre, which acts as a store and forward centre for short
`messages. Thus a GSM PLMN needs to support the transfer of short messages between Service Centres and mobiles.
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`Two different point-to-point services have been defined: mobile originated and mobile terminated. Mobile originated
`messages will be transported from an MS to a Service Centre. These may be destined for other mobile users, or for
`subscribers on a fixed network. Mobile terminated messages will be transported from a Service Centre to an MS. These
`may be input to the Service Centre by other mobile users (via a mobile originated short message) or by a variety of other
`sources, e.g. speech, telex, or facsimile.
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`The present document includes references to features which were introduced into the GSM Technical specifications
`after Release 96 of GSM Phase 2+.
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`The following table lists all features that were introduced after Release 96 and have impacted this specification:
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`ETSI
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`DEFS-AGIS-CC_000006
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