Motorola HF800 用户手册

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Note: Phones supporting only the Headset Profile will only recognize 
functions associated with the “Short Press MFB” action. For phones 
supporting only the Headset Profile, a short press of the MFB may initiate 
either a voice dial or a redial of the last dialed number depending upon the 
phone’s settings.

Note: Phone and service plan must support 3-way calling and call waiting to 
utilize the functions associated with these features.

Short Press Power Reject a Call (phone rings)

Reject Second Incoming Call

End held call

Long Press Power

In Call, Add Second Call (creates 3-way call)