Yealink SIP-T42S User Manual page 163

Paging list is configurable via web user interface at the path Directory->Multicast IP.
To delete a paging group via phone user interface:
1. Press the paging list key when the phone is idle.
Press or to select a desired paging group.
2.
Press the Option soft key and then select Delete.
3.
The LCD screen prompts "Delete selected paging group?".
Press the OK soft key to accept the change or the Cancel soft key to cancel.
4.
If you want to delete all paging groups, you can press the Del All soft key.
You can also configure the phone to use a default codec for sending multicast RTP stream via
web user interface.
To configure a default codec for multicast paging via web user interface:
Click on Features->General Information.
1.
Select the desired codec from the pull-down list of Multicast Codec.
2.
The default codec is G722.
Advanced Phone Features
153