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C  Mapping of parameters between ISUP and MAPWord-p. 19
D (Normative)  Formats and codesWord-p. 20
E  Examples of echo control proceduresWord-p. 22
E.1  Outgoing call in a Mobile-service Switching Centre (MSC)
E.2  Incoming call in the MSC
E.3  Examples of echo control procedureWord-p. 23
E.3.1  Call from a mobile station to a mobile station via the fixed network
E.3.2  Call from a mobile station to fixed network with no echo control device
E.3.3  Call from a mobile station to fixed network with echo control deviceWord-p. 24
E.3.4  Call from fixed network with no echo control device to a mobile station roaming in a PLMN of another country
E.3.5  Call from fixed network with echo control device to a mobile station roaming in a PLMN of another countryUp
E.3.6  Call from fixed network with no echo control device to a mobile stationWord-p. 25
E.3.7  Call from fixed network with echo control device to a mobile station
E.3.8  Call forwarded by the VMSC
E.3.9  Call forwarded by the VMSC to the fixed network with no echo control deviceWord-p. 26
E.3.10  Call with no outgoing echo control device included in a preceding exchange forwarded by the VMSC to the fixed network with no echo control device in the terminating network. The VMSC knows that an outgoing half echo control device is not necessary
E.3.11  Call with no outgoing echo control device included in a preceding exchange forwarded by the VMSC to the fixed network with echo control device in the terminating network. The VMSC knows that an outgoing half echo control device is not necessary
E.3.12  Call with no outgoing echo control device included in a preceding exchange forwarded by the VMSC to the fixed network with no echo control device in the terminating network. The VMSC knows that an outgoing half echo control device is necessaryWord-p. 27
E.3.13  Call with no outgoing echo control device included in a preceding exchange forwarded by the VMSC to the fixed network with echo control device in the terminating network. The VMSC knows that an outgoing half echo control device is necessary
Z  HistoryWord-p. 28

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