Samsung SMT-W5120 User Manual page 115

Phone IP
The phone's IP can be changed between the system DHCP, static IP mode, and the standard DHCP.

[MENU] 8. System
1
 
[OK] 3. Phone IP
/2. Static IP mode /3. Standard DHCP]
[If 1. System DHCP or 3. Standard IP mode has been selected at Step 1]
Select [Save] or [Registration], and press [OK].
2
- [Save] only saves the changed value, while [Registration]
saves the value and also performs reregistration.
 
[OK] 8. Network Setting

Select [1. System DHCP
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SMT-W5120 User Guide _