HP 8921A - Handoff a Mobile Station to a New Voice Channel; Release a Mobile Station

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Chapter 6, Call Processing Subsystem
Using the CALL CONTROL Screen to Test Call Processing Functions
Handoff a Mobile Station to a New Voice Channel
1. Ensure that the Test Set is in the connect state. See "Page a Mobile Station" on page
133 for information on how to bring a mobile station up on a voice channel.
2. If the CALL CONTROL screen is not displayed, select CALL CNTL from the To
Screen menu. The CALL CONTROL screen will be displayed.
3. Position the cursor on the Display field and select Data.
4. Select the Chan: field. Enter a new, valid voice channel number.
5. Select the Pwr Lvl: field. Enter a new, valid mobile station power level.
6. Select the SAT: field. Enter a new, valid SAT frequency.
7. Select the Handoff field. The Access annunciator will light while the Test Set sig-
nals the mobile station with the handoff information. If the mobile responds properly,
it will stop transmitting on the current voice channel, switch to the new voice channel,
and transpond the newly assigned SAT frequency. When the Test Set detects this has
happened the Connect annunciator is lit indicating that the handoff was successful.
The Voice Channel Assignment section will be updated; that is, any “−” in the
left-hand fields will be replaced with appropriate information.
Release A Mobile Station
1. Ensure that the Test Set is in the connected state. See "Page a Mobile Station" on
page 133 for information on how to bring a mobile station up on a voice channel.
2. If the CALL CONTROL screen is not displayed, select CALL CNTL from the To
Screen menu. The CALL CONTROL screen will be displayed.
3. Select the Release field. The Test Set will signal the mobile station with a release or-
der. The mobile station will respond to the release order and cease transmission. The
Test Set will terminate transmission on the forward voice channel, and the Connect
annunciator will turn off. The Test Set will then reconfigure itself for transmission on
the forward control channel, begin to transmit system parameter overhead messages,
and the Active annunciator will light.