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5055 SIP Phone User Guide (Rev. A)
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5. To view calls from another log, press the Cancel key, then the OK softkey, and repeat
steps 2 to 4. When you are finished, press the Menu key to return to the default display.
Conference Call (3-Way)
The 5055 SIP Phone supports three-party conferences.
Note: Conference call is not available when your SIP Phone is set for G.729 audio codec
(the Conf softkey is replaced by NA to indicate that the feature is not available).
Adding a Third Party to a Call in Progress
1. Press the Trans/Conf key. The call is put on hold.
2. Press a free Line key.
3. Enter the address of the new party and press the Dial softkey.
4. Once you have connected with the new party, press the Conf softkey. The call on hold is
connected to the call in progress.
Note: If the new party does not answer, press the Cancel key twice to return to the
held party.
Adding a Party on Hold to a Call in Progress
1. Press the Trans/Conf key. The call is put on hold.
2. Press the Line key of the party already on hold.
3. Once you have connected with the new party, press the Conf softkey. The call put on
hold in step 1 is connected to the call in progress.
Leaving a Conference Call
To leave a Conference Call, hang up the handset, press the Hangup softkey, or press the
Cancel key.
Note: If the originator of the conference call hangs up, then the other two parties do not
remain connected. If either of the called parties hangs up, the call will remain
connected.
Display Contrast
You can adjust the contrast of the display to suit your preference.
Changing the Display Contrast
• While the phone is idle, use the ▼ or ▲ key to adjust the display contrast to the desired
level (press repeatedly to change by more than one level).
Note: When changing the display contrast this way, the setting is first stored in temporary
memory. The temporary memory is saved to permanent (flash) memory at regular
intervals during the day. If your SIP Phone loses power or reboots between the time
you changed the setting and a flash memory update, the new setting will be lost.
Changing the Display Contrast—Immediate Save
1. Press the Menu key.