2201R Mobile Tester User Guide
Chapter 3 Performing manual tests and measurements in GSM mode
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IMSI Attach
This selection field enables or disables the Attach/Detach procedure. When enabled, you get a visible notification
when the mobile is camping on the cell simulated by the 2201R Mobile Tester.
If this box is selected, the 2201R initially indicates the Idle signaling status. The 2201R signals to the mobile phone
to apply the IMSI Attach/Detach procedure. This means that when the mobile is turned on and has selected the cell
simulated by the 2201R, it registers with the 2201R. This way, the 2201R can notify the user when the mobile is ready
for a call; the 2201R then displays “Attached” in the Status field at the top of the GSM and GPRS menus. This way,
you know when the mobile is ready for testing.
Similarly, when the mobile is turned off (or when it selects a different cell), it de-registers with the 2201R. The Status
field changes to Idle, indicating that no mobile is ready for testing.
s
If IMSI Attach is deselected, the IMSI Attach/Detach procedure is not performed; this is the default state and should
be used to speed up testing, especially under remote control.
Entry range: On or Off. Default value: Off.
SS Status
In GSM/VGCS mode, this parameter sets the SS Status value of ReleaseComplete message during the
Interrogation-SS procedure.
Entry range: 0 to 15. Default value: 0.
Below is the table with the various possible values of SS Status (refer to 3GPP TS 23.011 section 2.1.2.1):
RA Color
In GPRS mode, the Routing Area (RA) color code is broadcast by the base station and used by the mobile phone to
differentiate between base stations of adjacent cells belonging to different routing areas. While on a GPRS channel
and moving from one cell to another, the phone should select a new cell with the same RA color code only if possible.
Entry range: 1 to 7. Default value: 5.
Table 9 SS Status valid values
Value Provisioned Registered Active
7
6 X
5 X
4 X X
0XXX
15
14 X
13 X
12 XX
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