Yealink SIP-T2 SERIES Administrator's Manual page 343

To configure call completion via web user interface:
1. Click on Features->General Information.
2. Select the desired value from the pull-down list of Call Completion.
3. Click Confirm to accept the change.
To configure call completion via phone user interface:
1. Press Menu->Features->Call Completion.
2. Press or
Completion field.
3. Press the Save soft key to accept the change.
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:
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,
, or the Switch soft key to select the desired value from the Call
Configuring Basic Features
321