Polycom VVX 1500 C Business Media Phone for Cisco Unified Communications Manager (SIP) - Manual (Page 141)

Using the Basic Features of Your Phone
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4. Tap the Enable soft key to confirm call forwarding.
If you chose to always forward calls, the Line Key displays the forwarding
icon, , to indicate that the Always forwarding type is enabled. If you
enabled the Busy or No Answer forwarding type, the Line Key icon does not
change.
The following figure shows Line 1952 with the Always forwarding type
enabled.
To disable call forwarding:
1. Do one of the following:
— Tap > Features > Forward.
or
— From the idle screen, tap the Forward soft key.