Snom D710 Manual page 15

After pressing the "menu" key you have the following options:
Call settings
Call waiting indication: define whether this function should be activated.
(optional, depending on settings on the administration portal) Timeout: set the ringing time.
(optional, depending on settings on the administration portal) Intercom: the intercom
function enables speaking directly to a linked extension through the system, without dial tone and
ring tone.
Caller ID block: set your entire number to be shown to the party being called, the switchboard
number to be displayed or all caller ID information to be blocked.
Call forwarding: activate the function Call forwarding
Parallel call: configure another telephone or your mobile phone to ring in addition to your
telephone when a call comes in. You can then answer the call with one of the two telephones.
Call forwarding: profiles
Here you can select your preconfigured call forwarding profiles.
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