Step Name | Description | Expected
| Step 1 | Enter the partner number in dialpad. then tap Green Key to setup the call. | The calling text along with the number of called number is displayed on the screen.
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| Step 2 | Accept the call at partner. | - The speech path between the two parties is established. The screen displays the number of partner for current ongoing call.
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| Step 3 | During the active call, enter a phone number in MUT to partner2. Press the Green key. | - partner1 is put on hold.- The calling text along with the number of called number is displayed on the screen.
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| Step 4 | Accept the call at partner2. | - The speech path between the two parties is established. The screen displays the number of the called party for current ongoing call.- Ensure that call timer gets incremented while the call is ongoing.
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| Step 5 | Select the button "Merge". | "Conference" -text and icon appear on the screen.
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| Step 6 | Press "speaker" button | The conference call's audio can be heard from speaker
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| Step 7 | Wait 20s, end the call by pressing the Red Key. | - Call last 20s.- MUT goes to standby screen.- Check whether the called number and call time gets updated in the call log of MUT.
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| Step 8 | Repeat step1 to step7 during MT | The phone number of the caller is displayed together with call waiting menu: Answer Busy Replace active call.