Agilent Technologies 8960 10 Series Reference Manual page 533

Testing a Mobile for Enhanced Full Rate Speech Channel Mode
The channel mode function allows you to command a mobile to switch between full rate speech and enhanced
full rate speech either before a call is originated, or during a call connected state with any or all of the
supported measurements running.
The following measurements are supported in enhanced full rate speech mode:
• Analog Audio (AAUDio)
• Bit Error Rate (BERRor)
• Fast Bit Error Rate (FBERror)
• Dynamic Power (DPOWer)
• I/Q Tuning (IQTuning)
• Output RF Spectrum (ORFSpectrum)
• Phase and Frequency Error (PFERror)
• Power versus Time (PVTime)
• Transmitter Power (TXPower)
You can initiate a Decoded Audio (DAUDio) measurement in enhanced full rate speech mode. However, this
measurement is not supported in this channel mode and the integrity indicator will report that the results are
questionable (see "Decoded Audio (DAUDio) Troubleshooting" on page
If you change the channel mode when no call is connected, the mobile is requested to go into the selected
channel mode the next time a mobile originated or mobile terminated call is initiated.
If you change the channel mode when a call is connected, the mobile is requested to go into the selected
channel mode immediately.
The channel mode should only be changed when the test set is in active cell operating mode, not test operating
mode.
NOTE GSM Phase 1 mobiles are not required to support enhanced full rate speech vocoder. Therefore,
the behavior of a GSM Phase 1 mobile which does support enhanced full rate speech vocoder may
be manufacturer dependent when used with the channel mode function.
If you switch the channel mode between enhanced full rate speech and full rate speech when the
downlink speech source is set to Echo (see
you may hear momentary unpleasant audio bursts from the mobile.
Related Topics
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"Programming a Channel Mode Change" on page 117
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"CALL:TCHannel:DOWNlink:SPEech" on page
S:\Hp8960\E1960A GSM Mobile Test Application\A.04 Release\Reference_Manual\Chapters\gen_chmode_change.fm
Testing a Mobile for Enhanced Full Rate Speech Channel Mode
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