Yealink SIP-T4X Administrator's Manual page 173

If the recording fails for some reasons, for example, the recording box is full, the server
will respond with a 200 OK message.
Example of a 200 OK message:
<YealinkIPPhoneText>
<Title>
</Title>
<Text>
Probably the recording box is full.
</Text>
<YealinkIPPhoneText>
When the user presses the URL record key for the second time, the IP phone sends an
HTTP GET message to the server, and then the server will respond with a 200 OK
message.
Example of a 200 OK message:
<YealinkIPPhoneText>
<Title>
</Title>
<Text>
The recording session is successfully stopped.
</Text>
<YealinkIPPhoneText>
Procedure
Call recording key can be configured using the configuration files or locally.
Configuration File
Local
<y0000000000xx>.cfg
Web User Interface
Phone User Interface
Configuring Advanced Features
Assign a record key.
For more information, refer to
Record Key on page 401.
Assign a URL record key.
For more information, refer to
Record Key on page 401.
Assign a record key.
Assign a URL record key.
Navigate to:
http://<phoneIPAddress>/servlet
?p=dsskey&model=1&q=load&li
nepage=1
Assign a record key.
Assign a URL record key.
URL
157