User`s guide

Appendix B: Troubleshooting
Problem Potential resolutions
Wireless appliance will not attach. Ensure cable loss is correctly specified in RF IN/OUT
Amplitude Offset table
Verify test SIM is good and installed correctly
Check that cell power is sufficient (increase it up to -35 dBm
to overcome interference, or if an indirect RF connection is
used between the test set and phone)
Try coding scheme CS-1. Go to the Call Setup Screen; Call
Parms column; Menu 2 of 4 (More key); Coding Scheme
(F11 key)
Verify that the wireless appliance is capable of multislot
configuration operation; if in doubt, try 1 down 1up. Go to
the Call Setup Screen; Call Parms column; Menu 3 of 4
(More key); Multislot Config (F7 key)
Problem could relate to a connection parameter called TBF
Frame Starting Position. Change this parameter under call
parameters menu 4. Try an Absolute or Immediate frame
starting position. The default is Relative and not all mobiles
support this.
Test set displays IMSI warning: GSM protocol warning;
No IMSI received from MS (using default IMSI)
This is often an error in the firmware of the phone. The
default IMSI is 001012345678901. This is the IMSI
programmed into Agilent or HP test SIM’s.
If this message is received, it is not possible to make a data
connection, unless a SIM with the default IMSI value is
installed in the wireless device.
Problems establishing a data connection specifically
with the BLER Data Conn Type:
Try changing the setting of the LLC Frame Check Sequence
from Valid to Corrupt. Go to the Call Setup Screen; Call
Parms column; Menu 4 of 4 (More key); Connection
Parameters (F4 key); scroll in Connection Parameters table
to LLC Frame Check Sequence.
Try changing the setting of the BLER Block Polling Interval
(default is 1; range is 1 to 32). Go to the Call Setup Screen,
Call Parms column; Menu 4 of 4 (More key) Connection
Parameters (F4 key), Scroll in Connection Parameters table
to BLER Block Polling Interval.
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