The SIP-T20P IP phone maintains call history lists of Dialed Calls, Received Calls, Missed Calls and Forwarded Calls. The call history lists support to store 100 entries in all. You can check the call history, dial a call, add a contact or delete an entry from the call history list. You should enable the history record feature in advance. 

To enable the history record feature: 

1. Press Menu
2. Select Features->History Setting
3. Press Left or Right to select Enable from the History Record field. 
4. Press OK to accept the change. 

To check the call history: 

1. Press *
The LCD screen displays the call list. 
2. Press Left or Right to switch between Dialed Calls, Received Calls, Missed Calls and Forwarded Calls
3. Press Up or Down to select the desired entry. 
4. Press The detailed information of the entry appears on the LCD screen. 

To dial a call from the call history list: 

1. Press UpThe LCD screen displays the call list. 
2. Press Left or Right to switch between Dialed Calls, Received Calls, Missed Calls and Forwarded Calls
3. Press Up or Down to select the desired entry. 
4. Press OK to dial out. 

To add a contact from the call history list: 

1. Press Up. The LCD screen displays the call list. 
2. Press Left or Right to switch between Dialed Calls, Received Calls, Missed Calls and Forwarded Calls
3. Press Up or Down to select the desired entry. 
4. Press 
5. Enter the desired values in the corresponding fields. 
6. Press OK

To delete an entry from the call history list: 

1. Press Up. The LCD screen displays the call list. 
2. Press Left or Right to switch between Dialed Calls, Received Calls, Missed Calls and Forwarded Calls
3. Press Up or Down to select the desired entry. 
4. Press X to delete the entry