Yealink W52P - Manual (Page 67)

Call Features
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You can use the handset to create a local conference with other parties. The handset
supports up to 3 parties (including yourself) in a conference call. You can create a
conference between an active call and a held call on the handset (on the same line or
different lines).
To set up a local conference call:
1. Place a call to the first party.
2. Press the Options soft key, and select Conference.
3. Do one of the following:
- Enter the number of the second party or select the handset you want to add to
the conference.
Press or the Conf. soft key to dial out.
- Press the Directory soft key, and select the desired contact.
Press the Call soft key.
If both the office number and the mobile number of the contact are stored,
select the desired number and press or the OK soft key to dial out.
4. When the second party answers the call, you can consult with him or her before
adding the call to the conference.
5. Press the Conf. soft key again to join all parties in the conference.
To join two calls in a conference:
1. Place two calls on the handset.
2. Select the desired call and make sure the call is active.
3. Press the Options soft key, and select Conference.
Two calls are joined in the conference.
To drop the conference call, press or the End soft key.
You can use anonymous call feature to block the identity and phone number from
showing up to the called party when you call someone. For example, you want to call to
consult some service, but do not want to be harassed. You can configure anonymous
call feature on a per-line basis.
Note The anonymous call feature is not available on all servers. Contact your system
administrator for more information.