GSM 11.14 - Version 5.2.0 - Digital cellular ... - Ttfn.net
GSM 11.14 - Version 5.2.0 - Digital cellular ... - Ttfn.net
GSM 11.14 - Version 5.2.0 - Digital cellular ... - Ttfn.net
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8.2 Structure<br />
Direction: ME to SIM<br />
The command header is specified in TS <strong>GSM</strong> 11.11 [14].<br />
Command parameters/data:<br />
Page 35<br />
<strong>GSM</strong> <strong>11.14</strong> version <strong>5.2.0</strong>: December 1996<br />
Description Section M/O Min Length<br />
Menu Selection tag 12.1 M Y 1<br />
Length (A+B) - M Y 1 or 2<br />
Device identities 11.7 M Y A<br />
Item identifier 11.10 M Y B<br />
- Device identities: the ME shall set the device identities to:<br />
Source: Keypad<br />
Destination: SIM<br />
9 Call Control by SIM<br />
9.1 Procedure for mobile originated calls<br />
If the service "call control" is allocated and activated in the SIM Service Table (see <strong>GSM</strong> 11.11 [14]), then<br />
the ME shall follow the procedure below:<br />
- For all call set-up attempts, the ME shall first pass the dialled digits and associated parameters to<br />
the SIM, using the ENVELOPE (CALL CONTROL) command defined below. The only exception is<br />
for redial attempts which are managed by the ME and only require the call set-up details to be<br />
passed to the SIM for the first attempt.<br />
- The SIM shall respond with SW1 / SW2 = "90 00" or "9F XX".<br />
- If the SIM responds with "90 00", the ME shall set up the call with the dialled digits and other<br />
parameters as sent to the SIM.<br />
- If the SIM responds with "9F XX", the ME shall use the GET RESPONSE command to get the<br />
response data. The response data from the SIM shall indicate to the ME whether to set up the call<br />
as proposed, not set up the call, or instead set up a call using the data supplied by the SIM. It is<br />
mandatory for the ME to perform the call set-up request in accordance with the data from the SIM.<br />
Optionally, the ME may indicate to the user that the call has been barred or changed.<br />
The ME shall then follow the call set-up procedure defined in <strong>GSM</strong> 04.08 [8].<br />
9.2 Procedure for Supplementary Services<br />
If the service "call control" is allocated and activated in the SIM Service Table (see <strong>GSM</strong> 11.11 [14]), then<br />
for all supplementary service operations, the ME shall first pass the supplementary service control string<br />
(corresponding to the supplementary service operation and coded as defined in <strong>GSM</strong> 02.30 [4], even if this<br />
SS operation has been performed via a specific menu of the ME) to the SIM, using the ENVELOPE (CALL<br />
CONTROL) command defined below.<br />
The SIM shall respond in the same way as for dialled digits. The ME shall interpret the response as<br />
follows:<br />
- If the SIM responds with "90 00", the ME shall send the supplementary service operation with the<br />
information as sent to the SIM.
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