Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones3162. Press or , or the Switch soft key to select the desired value from the CallCompletion field.3. Press the Save soft key to accept the change.Anonymous CallAnonymous call allows the caller to conceal the identity information displayed on the callee’sscreen. The callee’s phone LCD screen prompts an incoming call from anonymity. Anonymouscall is configurable on a per-line basis.Example of anonymous SIP header:Via: SIP/2.0/UDP 10.3.20.14:5060;branch=z9hG4bK3074920774From: "Anonymous" ;tag=131654239To: 06@10.2.1.48:5060>Call-ID: 0_288363101@10.3.20.14CSeq: 1 INVITEContact: 09@10.3.20.14:5060>Content-Type: application/sdpAllow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH,UPDATE, MESSAGEMax-Forwards: 70User-Agent: Yealink SIP-T23G 44.80.0.60Allow-Events: talk,hold,conference,refer,check-syncP-Preferred-Identity: 09@10.2.1.48>Privacy: idContent-Length: 302The anonymous call on code and anonymous call off code configured on IP phones are used toactivate/deactivate the server-side anonymous call feature. They may vary on different servers.Send Anonymous Code feature allows IP phones to send anonymous on/off code to the server.ProcedureAnonymous call can be configured using the configuration files or locally.Configuration File .cfgConfigure anonymous call.Parameters:account.X.anonymous_callaccount.X.send_anonymous_codeaccount.X.anonymous_call_oncodeaccount.X.anonymous_call_offcodeLocal Web User InterfaceConfigure anonymous call.Navigate to: