Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
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Ext Keys Configuration
Ext Keys Configuration
The following table lists the parameters you can use to configure ext keys.
Parameter
expkey.type_range.custom <y0000000000xx>.cfg
Description
It configures the list for available ext key types list when configuring ext keys.
To assign function types, specify ext key type IDs which start with or without a symbol ”+”. For
example, “+2,15,16,7,4” or “2,15,16,7,4” means only “N/A”, “Forward”, “Line”, “BLF”, “Recall”, “Hold”
types are available when you configure ext keys.
To remove a function type, specify ext key type IDs which start with the symbol “-”. For example, “-14,
5, 2” means to remove “Intercom”, “DND”, “Forward” types from the ext key types list. These ext key
types are not available when you configure ext keys.
Note: Multiple ext key type IDs are separated by commas. N/A type is always kept.
Permitted
Values
Blank or 0 (all valid function types are available);
Dsskey type IDs.
For supported Dsskey types and IDs, refer to Supported Dsskey Types.
Default
Blank
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T48G, T46U, T46S, T46G, T43U, T29G, T27G
Parameter
expansion_module.X.key.Y.type
[1]
<y0000000000xx>.cfg
Description
It configures the feature for a specific ext key.
Permitted
Values
0-N/A
1-Conference
2-Forward
3-Transfer
4-Hold
5-DND
7-Recall
8-SMS
9-Direct Pickup
10-Call Park
11-DTMF
12-Voice Mail
13-Speed Dial
14-Intercom
15-Line
16-BLF
17-URL
18-Group Listening
20-Private Hold
22-XML Group
23-Group Pickup
24-Multicast Paging
(Paging)
25-Record
27-XML Browser
34-Hot Desking
35-URL Record
37-Switch (only applicable to ext key 1 for
T29G/T27G phones)
38-LDAP (only appears when “ldap.enable=1”)
39-BLF List
40-Prefix
41-Zero Touch
42-ACD
45-Local Group
50-Phone Lock
56-Retrieve Park
61-Directory
66-Paging List
73-Custom Key (only available when “fea-
tures.enhanced_dss_keys.enable=1”)
77-Mobile Account (only available to
T57W/T54W/T53W/T53/T48U/T46U/T43U phones
when the Bluetooth-enabled mobile phone is con-
nected)
104-Google Contacts (only appear when “google_
contact_server.enable = 1”)

Yealink SIP-T31G Specifications

General

Mounting kit	Yes
Number of handles included	1 pc(s)
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	G.722, G.729, AGC, G.729A, AJB, PLC, G.711Mu, VAD, G.711a, G.723.1, G.726, iLBC, CNG, OPUS
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	3 W
Lines quantity	2 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	2
Sustainability certificates	RoHS, REACH
Networking standards	IEEE 802.3af, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	188 mm
Height	162 mm
Package depth	210 mm
Package width	213 mm
Package height	103 mm