Yealink CP920 Instruction Manual

Using Your Phone with PSTN Account
73
Using Your Phone with PSTN Account
You can connect optional expansion PSTN box CPN10 to extend functions of the conference phone. Calls can be made
using the Public Switched Telephone Network (PSTN).
Up to 2 cascaded PSTN Boxes can be installed to an IP conference phone, which allows you to experience the local
five-way conference conveniently in excellent speech quality with PSTN.
Topics
Connecting the Expansion PSTN Box CPN10
Configuring the PSTN Account
Selecting the Country for PSTN Use
Configuring Flash Time
Basic Call Features
Conference
Recording Using a USB Flash Drive
Unavailable Features for PSTN
Connecting the Expansion PSTN Box CPN10
If you want to use the features about PSTN on the phone, you need to connect the expansion PSTN box CPN10 in
advance.
Procedure
1. Insert the USB plug on the expansion PSTN box into the USB port on the phone.
For the information on how to connect expansion PSTN box CPN10, refer to PSTN Box CPN10 quick start guide on
Yealink Technical Support page.
Configuring the PSTN Account
If you have connected an expansion PSTN box CPN10 to the phone, a PSTN account is automatically registered on the
phone. You can disable the account.
Before You Begin
The PSTN box CPN10 is connected to the phone successfully, and the phone prompts to confirm that you want to set
the PSTN account.
Procedure
1. Tap OK.
2. Select the desired PSTN account.
3. Select the desired value from the Active Line field.
4. (Optional.) Enter the string that will appear on the phone screen in the Label field.
5. Tap Save.
Tip
You can also configure the PSTN account at the path Menu > Settings > Advanced Settings (default password: admin) >
Accounts.
Related Topic

Yealink CP920 Specifications

General

Control type	Buttons
Display type	LCD
Product type	IP conference phone
Voice codecs	CNG, G.722, G.722.1C, G.723, G.726, OPUS, VAD, iLBC
Certification	CE
Product color	Stainless steel
Built-in display	Yes
Display diagonal	3.1 \
Display resolution	248 x 120 pixels
Phonebook capacity	1000 entries
Security algorithms	HTTPS
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet interface type	Fast Ethernet
Microphone direction type	Omnidirectional
AC input voltage	100 - 240 V
USB version	2.0
Storage temperature (T-T)	-10 - 40 °C
Operating relative humidity (H-H)	10 - 90 %
Harmonized System (HS) code	85176990

Weight and Dimensions

Depth	298 mm
Width	307.8 mm
Height	66.9 mm
Package depth	364 mm
Package width	336 mm
Package height	112 mm