Yealink SIP-T4X Administrator's Manual page 95

Anonymous call allows the caller to conceal the identity information displayed on the
callee's screen. The callee's phone LCD screen prompts an incoming call from
anonymity.
Example of anonymous SIP header:
Via: SIP/2.0/UDP 10.2.8.183:5063;branch=z9hG4bK1535948896
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=128043702
To: <sip:1011@10.2.1.199>
Call-ID: 1773251036@10.2.8.183
CSeq: 1 INVITE
Contact: <sip:1012@10.2.8.183:5063>
Content-Type: application/sdp
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER,
PUBLISH, UPDATE, MESSAGE
Max-Forwards: 70
User-Agent: Yealink SIP-T46G 28.72.0.1
Privacy: id
Supported: replaces
Allow-Events: talk,hold,conference,refer,check-sync
P-Preferred-Identity: <sip:1012@10.2.1.199>
Content-Length: 302
The anonymous call on code and anonymous call off code configured on IP phones are
used to activate/deactivate the server-side anonymous call feature. They may vary on
different servers. Send Anonymous Code allows IP phones to send anonymous call
on/off code to the server.
Procedure
Anonymous call can be configured using the configuration files or locally.
Configuration File
Local
<MAC>.cfg
Web User Interface
Phone User Interface
Configuring Basic Features
Configure anonymous call.
For more information, refer to
Anonymous Call on page 288.
Configure anonymous call.
Navigate to:
http://<phoneIPAddress>/servlet
?p=account-basic&q=load&acc
=0
Configure anonymous call.
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