Anonymous Call; Incoming Calls; Answer An Incoming Call; Reject An Incoming Call - RCA IP172 User Manual

To make an external call through default line:
Enter the number/IP address in pre-dialing page or select a record in
phonebook/call log list. Then press the Talk On key or OK key. The default
outgoing line will be selected automatically for the call making.
To select line before making an external call:
Enter the number/IP address in pre-dialing page or select a record in
phonebook/call log list. Select "Acc" soft key, select the desired line
and press "Dial".

Anonymous call

To configure the anonymous call function, users must use the master deskphone.
Enter the "Services" menu. Input the deskphone user password. Select the SIP
account to enable/disable the anonymous feature. There are 2 items to configure.
When "Anonymous call" setting is enabled, the phone's phone number is
prevented from being displayed when calling other numbers. When "Anonymous
call rejection" setting is enabled, any caller who has explicitly restricted his/her
number is pre- vented from calling this deskphone.

Incoming calls

Answering an incoming call
When there is an incoming call, picking up the handset / pressing speakerphone key
/ pressing headset key to answer the call.
Rejecting an incoming call
When there is an incoming call, press the "Reject" soft key to reject the call.

DND

On the master deskphone, Enter "Services"  "DND" menu or "DND" soft key
during idle. Highlight and select the SIP account you want to enable/disable DND,
select enable or disable to confirm confirm. A DND icon should appear on H/S
screen. Any incoming call will be rejected until the DND is deactivated.