Yealink CP860 Administrator's Guide

Administrator’s Guide for CP860 IP conference phones
388
Step
Action
Description
response indicates that User B accepts
the transfer.
F27
BYE—User A to Proxy Server
User A terminates the call session by
sending a SIP BYE request to the proxy
server. The BYE request indicates that
User A wants to release the call.
F28
BYE—Proxy Server to User B
The proxy server forwards the BYE
request to User B.
F29
200OK—User B to Proxy
Server
User B sends a SIP 200 OK response to
the proxy server. The 200 OK response
notifies User A that User B has received
the BYE request.
F30
200OK—Proxy Server to User
A
The proxy server forwards the SIP 200
OK response to User A.
The following figure illustrates successful call forwarding between Yealink SIP IP phones
in which User B has enabled always call forward. The incoming call is immediately
forwarded to User C when User A calls User B. In this call flow scenario, the end users
are User A, User B, and User C. They are all using Yealink SIP IP phones, which are
connected via an IP network.
The call flow scenario is as follows:
1. User B enables always call forward, and the destination number is User C.
2. User A calls User B.
3. User B forwards the incoming call to User C.

Yealink CP860 Specifications

General

Speakerphone	Yes
Voice codecs	G.711, G.722, G.729ab, iLBC
Handset type	-
Product type	IP Phone
Product color	Black
Display resolution	192 x 64 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	1
Networking standards	IEEE 802.1x, IEEE 802.3af
Supported network protocols	IPv4/IPv6
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
Number of handles included	- pc(s)
Storage temperature (T-T)	10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %

Weight and Dimensions

Depth	260 mm
Width	320 mm
Height	52 mm