Yealink SIP-T57W Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
562
l RFC 3665—Session Initiation Protocol (SIP) Basic Call Flow Examples
l RFC 3666—SIP Public Switched Telephone Network (PSTN) Call Flows.
l RFC 3680—SIP Event Package for Registrations
l RFC 3702—Authentication, Authorization, and Accounting Requirements for the SIP
l RFC 3711—The Secure Real-time Transport Protocol (SRTP)
l RFC 3725—Best Current Practices for Third Party Call Control (3pcc) in the Session Initiation Protocol (SIP)
l RFC 3842—A Message Summary and Message Waiting Indication Event Package for the Session Initiation Pro-
tocol (SIP)
l RFC 3856—A Presence Event Package for Session Initiation Protocol (SIP)
l RFC 3863—Presence Information Data Format
l RFC 3890—A Transport Independent Bandwidth Modifier for the SDP
l RFC 3891—The Session Initiation Protocol (SIP) “Replaces” Header
l RFC 3892—The Session Initiation Protocol (SIP) Referred-By Mechanism
l RFC 3959—The Early Session Disposition Type for SIP
l RFC 3960—Early Media and Ringing Tone Generation in SIP
l RFC 3966—The tel URI for telephone number
l RFC 3968—IANA Registry for SIP Header Field
l RFC 3969—IANA Registry for SIP URI
l RFC 4028—Session Timers in the Session Initiation Protocol (SIP)
l RFC 4083—3GPP Release 5 Requirements on SIP
l RFC 4235—An INVITE-Initiated Dialog Event Package for the Session Initiation Protocol (SIP)
l RFC 4244—An Extension to the SIP for Request History Information
l RFC 4317—Session Description Protocol (SDP) Offer/Answer Examples
l RFC 4353—A Framework for Conferencing with the SIP
l RFC 4458—SIP URIs for Applications such as Voicemail and Interactive Voice Response (IVR)
l RFC 4475—Session Initiation Protocol (SIP) Torture
l RFC 4485—Guidelines for Authors of Extensions to the SIP
l RFC 4504—SIP Telephony Device Requirements and Configuration
l RFC 4566—SDP: Session Description Protocol.
l RFC 4568—Session Description Protocol (SDP) Security Descriptions for Media Streams
l RFC 4575—A SIP Event Package for Conference State
l RFC 4579—SIP Call Control - Conferencing for User Agents
l RFC 4583—Session Description Protocol (SDP) Format for Binary Floor Control Protocol (BFCP) Streams
l RFC 4662—A SIP Event Notification Extension for Resource Lists
l RFC 4730—Event Package for KPML
l RFC 5009—P-Early-Media Header
l RFC 5079—Rejecting Anonymous Requests in SIP
l RFC 5359—Session Initiation Protocol Service Examples
l RFC 5589—Session Initiation Protocol (SIP) Call Control – Transfer
l RFC 5630—The Use of the SIPS URI Scheme in SIP
l RFC 5806—Diversion Indication in SIP
l RFC 5954—Essential Correction for IPv6 ABNF and URI Comparison in RFC 3261
l RFC 6026—Correct Transaction Handling for 2xx Responses to SIP INVITE Requests
l RFC 6141—Re-INVITE and Target-Refresh Request Handling in SIP
l draft-ietf-sip-cc-transfer-05.txt—SIP Call Control - Transfer
l draft-anil-sipping-bla-02.txt—Implementing Bridged Line Appearances (BLA) Using Session Initiation Protocol
(SIP)

Yealink SIP-T57W Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Ethernet LAN	Yes
Wi-Fi standards	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Security algorithms	AES, HTTPS, MD5, SRTP
Networking standards	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP/TFTP/HTTP/HTTPS
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
Volume control	Buttons
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Display diagonal	7 \
Display resolution	800 x 480 pixels
Front camera	No
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Voice codecs	G.722, G.723.1, G.726, G.729A, G.729B, iLBC

Weight and Dimensions

Depth	220 mm
Width	259.4 mm
Height	211 mm