This article discusses how using a phone that is not unified communications (UC)-enabled differs from using a UC-enabled phone. Receiving calls from Microsoft Lync 2010 communications software is similar to receiving calls with Lync 2010 for UC-enabled users.
To ensure audio quality in video calls, Lync presents the video and sharing portions only on the computer; the audio portion uses the desk phone. You cannot start or join video calls or sharing sessions by using a desk phone. Video calls and sharing sessions cannot support both UC-enabled and non-UC systems. All parties must use the same system. Depending on how your system is set up, you may be unable to conduct video calls. For more information, contact your support team.
You cannot place more than two calls simultaneously, but you can have multiple people in the same call. You cannot place a second call if the first call is already on hold.
Depending on how your system is set up, you may be able to choose whether to join a conference call by using the desk phone or another public switched telephone network (PSTN) number.
Note RCC users cannot escalate an RCC call to an audio conference.
The following is true of call alerts when you use a non-UC phone.
If you use Exchange Unified Messaging (UM), note the following when you click the Phone icon in the Lync main window:
Your organization may choose whether you use the desk phone exclusively for calls and online meetings. If this is the case for you, the following options and capabilities are removed or unavailable: