Yealink T48G-SKYPE FOR BUSINESS EDITION User Manual page 210

User Guide for the T48G Skype for Business phone
Calls can be placed from the call history on the phone.
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Contact list is unavailable but you can search for a contact on the phone.
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Presence icon on the phone touch screen is displayed as

User is not able to change his presence status manually.
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User is not able to use calendar feature.
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User is not able to receive the voice mail as exchange is unreachable.
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Calls between the branch office phones can be transferred to another branch site user.
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Call forward settings cannot be changed.
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When the WAN connection between the branch site and central site becomes available, the
phone comes out of resiliency mode automatically. Notification of resiliency is automatically
dismissed, and you can use phone features as normal.
Note
For more information on branch office resiliency, contact your system administrator.
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