Yealink SIP-T38G Administrator's Guide

Administrator’s Guide for SIP-T3xG IP Phones
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SIP uses six request methods:
 INVITE—Indicates a user is being invited to participate in a call session.
 ACK—Confirms that the client has received a final response to an INVITE request.
 BYE—Terminates a call and can be sent by either the caller or the callee.
 CANCEL—Cancels any pending searches but does not terminate a call that has
already been accepted.
 OPTIONS—Queries the capabilities of servers.
 REGISTER—Registers the address listed in the To header field with a SIP server.
The following types of responses are used by SIP and generated by the IP phone or the
SIP server:
 SIP 1xx—Informational Responses
 SIP 2xx—Successful Responses
 SIP 3xx—Redirection Responses
 SIP 4xx—Client Failure Responses
 SIP 5xx—Server Failure Responses
 SIP 6xx—Global Failure Responses

Yealink SIP-T38G Specifications

General

Expansion module support	Yes
Ethernet LAN (RJ-45) ports	2
Keypad number of keys	48
Touchscreen	-
Display resolution	480 x 272 pixels
Display number of colors	16.78 million colors
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Voice codecs	G.711, G.722, G.723.1, G.726
Bluetooth	No
Security algorithms	802.1x RADIUS, HTTPS, SSL/TLS
AC adapter input voltage	100 - 240 V
AC adapter output voltage	5 V
Power consumption (typical)	4.6 W
Operating relative humidity (H-H)	10 - 95 %
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Compliance industry standards	IEEE 802.3af
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	204 mm
Width	273 mm
Height	42 mm
Weight	1050 g