Changing Your Phone Unlock PIN
The default unlock PIN is 123. You can change your unlock PIN at any time for security reasons.
Procedure
1. Navigate to Menu->Basic->Change PIN.
For the SIP-T42S/T42G/T41S/T41P/T40P/T40G IP phone, navigate to Menu->Settings->Basic Settings->Change
PIN.
2. Enter the desired value in the Old PIN, New PIN and Confirm PIN field respectively.
The unlock PIN length must be within 15 digits.
3. Press Save.
Customizing Your Phone
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Need help?
Do you have a question about the SIP-T48S and is the answer not in the manual?
Questions and answers
How do I change the number of rings? as of now the phone rings once and then goes straight to voicemail.
Touch Panel won't work