Anonymous Call - Yealink SIP-T2 Series Administrator's Manual

Select the desired value from the pull-down list of Call Completion.
2.
Click Confirm to accept the change.
3.
To configure call completion via phone user interface:
Press Menu->Features->Others->Call Completion.
1.
Press
2.
Completion field.
Press the Save soft key to accept the change.
3.

Anonymous Call

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. Anonymous
call is configurable on a per-line basis.
Example of anonymous SIP header when the anonymous call feature is performed on local:
Via: SIP/2.0/UDP 10.3.20.14:5060;branch=z9hG4bK3074920774
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=131654239
To: <sip:1006@10.2.1.48:5060>
Call-ID: 0_288363101@10.3.20.14
CSeq: 1 INVITE
Contact: <sip:1009@10.3.20.14:5060>
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 28.82.0.20
Allow-Events: talk,hold,conference,refer,check-sync
or , or the Switch soft key to select the desired value from the Call
Configuring Basic Features
357