ALE M3-M5-M7-M8 DeskPhones Administrator Guide   
Features → General → Auto Dial Out Timer 
10.7 Anonymous Call 
Anonymous call allows the caller to conceal the identity information shown to callee. The callee’s phone LCD 
screen prompts an incoming call from anonymity (there is no name, number or other information displayed). 
Anonymous calls can be performed locally or on the server. When performing an anonymous call on local, 
the IP phone sends an INVITE request message with a call source “From: Anonymous 
<sip:anonymous@anonymous.invalid>;tag=878106cc5e”. If performing an anonymous call on a specific 
server, you may need to configure the anonymous call on code and off code to activate and deactivate the 
function of anonymous call on the server side. 
The following table lists the parameters to configure an anonymous call. 
Note: X means account ID and it can be number 1~8 for M3/M5/M7, and 1-20 for M8. 
AccountXAnonymousCallEnable 
It enables or disable the anonymous call feature for account. 
true - enable 
false - disable 
Account → Advanced → Anonymous Call 
Menu → Features → Anonymous → AccountX → Anonymous 
AccountXAnonymousCallOnCode 
It configures the on code for accountX to activate anonymous call feature on the 
server side.  
Note: The parameter AccountXAnonymousCallEnable must set to true, the phone 
will send the on code to server. 
String within 32 characters 
Account → Advanced → Anonymous Call On Code 
Menu → Features → Anonymous → AccountX → On Code 
AccountXAnonymousCallOffCode 
It configures the off code for accountX to deactivate anonymous call feature on 
server side. 
Note: The parameter AccountXAnonymousCallEnable must set to false, the phone 
will send the off code to server. 
String within 32 characters 
Account → Advanced → Anonymous Call Off Code