Yealink SIP-T42G - Manual (Page 127)

Troubleshooting
117
Why does the phone play a tone when hold? How to disable it?
When there is a call is on hold, the phone will play a hold tone every 30 seconds. Play
hold tone is enabled by default. Play hold tone and the interval of playing a hold tone
are configurable via web user interface only.
To configure the call hold tone and call hold tone delay via web user interface:
1. Click on Features->General Information.
2. Select Enabled or Disabled from the pull-down list of Play Hold Tone.
3. Enter the desired time in the Play Hold Tone Delay field.
4. Click Confirm to accept the change.
How to change the user password?
To change the user password via web user interface:
1. Click on Security->Password.
2. Select user from the pull-down list of User Type.