CME GPP-3 Spécifications Page 160

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3GPP
3GPP TS 27.007 V6.3.0 (2003-
06)
16
0
Release 6
Annex E (informative):
Mobile originated alternating voice/data call example
Figure E.1 illustrates the possible transitions in MO BS 61 call. Responses and result codes generated by TA are in bold
face. In this example, data part of the call is asynchronous non-transparent 9600 bps service.
VOICEATD (or ATA)remote initiatedin-call modificationsuccessfulAT+CHUP(or ATHor drop DTR )remotehangupDATAremotehangup(V.24 circuit 109 ON)OFF-LINETA sets +CMOD=0AT+CBST=7,0,1OKAT+COLP=1; +CR=1; +DR=1; +ILRR=1OKAT+CMOD=2; +FCLASS=0OKOFF-LINEsuccess+COLP: +35812345,145OKconnection failureNO CARRIERAT+CEER+CEER: failure causeOKother possible failure codesBUSY/NO ANSWER/ERRORin-call modification success+CR: REL ASYNC+DR: NONE+ILRR: 19200CONNECT 9600in-call modification failureERRORAT+CEER+CEER: failure causeOK+CR: REL ASYNC+DR: NONE+ILRR: 19200CONNECT 9600AT+CHUPOKOKNO CARRIERNO CARRIERATD12345;ATD12345RLP negotiation failure+COLP: +35812345,145+CR: REL ASYNCNO CARRIERsuccess+COLP: +35812345,145+CR: REL ASYNC+DR: NONE+ILRR: 19200CONNECT 9600ATH (or drop DTR)in-call modification successOKremote initiatedin-call modificationsuccessfulin-call modification failureERRORAT+CEER+CEER: failure causeOKOK
Figure E.1: MO BS 61 call
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