Yealink SIP-T33P Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
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Web UI
Account > Advanced > Subscribe Register
Parameter
phone_setting.disable_account_without_username.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to disable the account whose username is empty.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Parameter
account.X.register_expires_overlap
[1]
<MAC>.cfg
Description
It configures the renewal time (in seconds) away from the registration lease.
Permitted
Values
Positive integer and -1
Default
-1
Parameter
account.X.subscribe_expires_overlap
[1]
<MAC>.cfg
Description
It configures the renewal time (in seconds) away from the subscription lease.
Permitted
Values
Positive integer and -1
Default
-1
[1]
X is the account ID. For T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G, X=1-16; for
T53W/T53/T43U/T42G/T42U/T42S, X=1-12; for T41P/T41S/T27G, X=1-6; for T33P/T33G, X=1-4; for
T40P/T40G/T23P/T23G, X=1-3; for T31P/T31G/T31/T21(P) E2, X=1-2; for T30P/T30/T19(P) E2/CP920, X=1.
[2]
If you change this parameter, the phone will reboot to make the change take effect.
Outbound Proxy in Dialog
An outbound proxy server can receive all initiating request messages and route them to the designated destination.
If the device is configured to use an outbound proxy server within a dialog, all SIP request messages from the
device will be sent to the outbound proxy server as a mandatory requirement.
Note: To use this feature, make sure the outbound server has been correctly configured on the device. For more information
on how to configure the outbound server, refer to Server Redundancy.
Topic
Outbound Proxy in Dialog Configuration
Outbound Proxy in Dialog Configuration
The following table lists the parameter you can use to configure the outbound proxy in dialog.
Parameter
sip.use_out_bound_in_dialog <y0000000000xx>.cfg
Description
It enables or disables the phone to send all SIP requests to the outbound proxy server mandatorily in
a dialog.
Note: It works only if “account.X.outbound_proxy_enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled, only the new SIP request messages from the phone will be sent to the outbound proxy
server in a dialog.
1-Enabled, all the SIP request messages from the phone will be sent to the outbound proxy server in
a dialog.

Yealink SIP-T33P Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Wall mountable	Yes
Operating system installed	Linux
Lines quantity	4 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	4
Volume control	Buttons
Number of function keys	5
Display diagonal	2.4 \
Display resolution	320 x 240 pixels
Voice codecs	AGC, AJB, CNG, G.711a, G.711u, G.722, G.723.1, G.726, G.729, G.729A, PLC, VAD, iLBC
Security algorithms	AES, HTTPS
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet LAN interface type	Fast Ethernet
RJ-9 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Input frequency	50/60 Hz
AC adapter input voltage	100 - 240 V
Power consumption (typical)	3 W
Power consumption (Power over Ethernet (PoE))	5 W
Number of handles included	1 pc(s)
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %

Weight and Dimensions

Depth	186 mm
Width	212 mm
Height	146 mm