Polycom IP 650 - Manual (Page 55)

Using the Basic Features of Your SoundPoint IP 650 SIP Phone
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3. Using and , select the forwarding type you want to change and
then press the Select soft key. The options are:
— Always—For all incoming calls
— No Answer—Once all options to accept calls have been taken
— Busy—When you are already in a call
4. Depending on your selection:
a If you select Always, enter a number to forward all future incoming
calls to.
b If you select No Answer, enter a number to forward all unanswered
incoming calls to and how many rings to wait before forwarding (one
ring is approximately six seconds). A value of 2 is recommended.
c If you select Busy, enter a number to forward all future incoming calls
to when you are already in another call.