Yealink SIP-T2 SERIES Administrator's Manual page 294

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
Details of the Configuration Parameter:
account.X.missed_calllog
Description:
Enables or disables the IP phone to indicate and record missed calls for account X.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), the IP phone does not display indicator on the idle screen and log
the missed call in the Missed Calls list when missed calls.
If it is set to 1 (Enabled), the IP phone displays a message on the idle screen and logs the
missed call in the Missed Calls list when missed calls.
X ranges from 1 to 16 (for SIP VP-T49G/SIP-T48G/T46G/T29G)
X ranges from 1 to 12 (for SIP-T42G)
X ranges from 1 to 6 (for SIP-T41P/T27P)
X ranges from 1 to 3 (for SIP-T40P/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
X is equal to 1 (for SIP-T19(P) E2/CP860)
Note: It works only if the value of the parameter "features.save_call_history" is set to 1
(Enabled).
Web User Interface:
Account->Basic->Missed Call Log
Phone User Interface:
None
To configure missed call log via web user interface:
Click on Account->Basic.
1.
Select the desired account from the pull-down list of Account.
2.
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Parameter
ad&acc=0
Permitted Values
0 or 1
Default
1