Yealink SIP-T23G Administrator's Guide

Configuration Parameters
529
Values 1-Enabled
Default
0
Parameter
sip.unreg_with_socket_close <y0000000000xx>.cfg
Description
It enables or disables the phone to close the socket immediately when the user deregisters the cor-
responding account(s).
Permitted
Values
0-Disabled
1-Enabled
Default
0
Parameter
account.X.check_cseq.enable
[1]
<MAC>.cfg
Description
It enables or disables the phone to check if the CSeq sequence number in the request is lower than
that in the previous request on the same dialog.
Permitted
Values
0-Disabled
1-Enabled. If the CSeq sequence number in the request is lower than that in the previous request, the
phone will reject the request.
Default
1
Parameter
account.X.check_to_tag.enable
[1]
<MAC>.cfg
Description
It enables or disables the phone to check if the To-tag is carried in the To header in renewal request.
Permitted
Values
0-Disabled
1-Enabled. If the To-tag does not exist, the phone will reject the request.
Default
0
Parameter
features.call_invite_format <y0000000000xx>.cfg
Description
It configures the format of callee field in the INVITE message.
Permitted
Values
0-sip:XXX
1-tel:Number, you need to set “account.X.outbound_proxy_enable" to 1.
Default
0
Parameter
sip.escape_characters.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to convert ASCII code into corresponding symbol.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Case Scen-
ario
Target characters: %5F (escape character % plus the ASCII characters 5F)
1. If you want to convert the ASCII code, set the following:
sip.escape_characters.enable = 1
sip.reserve_characters = %NULL%
Result: The target characters %5F are converted to _.
2. If you do not want to convert the ASCII code, set the following:
sip.escape_characters.enable = 0
sip.reserve_characters = %

Yealink SIP-T23G Specifications

General

Backlight	Yes
Voice codecs	G.711a, G.722.2, G.726, G.729ab, iLBC
Volume control	Digital
Handset type	Wired handset
Product type	IP Phone
Product color	Black, Silver
Display resolution	132 x 64 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Networking standards	IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x, IEEE 802.3af
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	1.56 W
Number of handles included	- pc(s)
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %

Weight and Dimensions

Depth	188 mm
Width	209 mm
Height	150 mm