Yealink CP860 [124/417] Anonymous call

Administrator’s Guide for CP860 IP conference phones

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2. Enter the desired time (in seconds) in the Auto-Answer Delay (1~4s) field.

3. Click Confirm to accept the change.

To configure auto answer and auto answer mute via phone user interface:

1. Press Menu->Features->Auto Answer.

2. Press the or soft key to select Enable from the Auto Answer field.

3. Press the or soft key to select Enable from the Auto Answer Mute field.

4. 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.

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