SIP message
The phone can send and receive SIP messages. A set message can be sent to a recipient with an appropriately configured function key. A received SIP message is displayed as a notification.
Examples
In a care home, repeated messages that the patient/resident in room X needs help.
Using sent SIP messages to warn of possible dangers. A silent alarm can also be triggered for this purpose.
*Further help under Silent Alert
Configuration
Web interface: 
Function keys> Choose a key >Function:SIP message
*Details about the settings are in Function keys
Phone: 
Settings > Function keys> Choose a key >Choose a function:SIP message
*Details about the settings are in Function keys
Provisioning: 
*Details about provisioning this function in the Auerswald DokuWiki at Setting and Key
Process 
1.A SIP message function key is pressed.
2.Depending on the predefined delay, a number of different scenarios are possible:
Delay 0 sec: The SIP message is sent immediately.
Delay min. 1 sec: A countdown timer appears on the display and the following options are offered.
Dismiss: The sending of the SIP message is aborted.
Start immediately!: The SIP message will be sent immediately.
Hide: The countdown timer is hidden. The SIP message is sent after the delay time has elapsed.
3.An action is triggered at the remote station informed via URL (e.g. alarm server).