Yealink SIP-T31G Administrator's Guide

Appendix
566
Appendix
RFC and Internet Draft Support
The following RFC’s and Internet drafts are supported:
l RFC 1321—The MD5 Message-Digest Algorithm
l RFC 1889—RTP Media control
l RFC 2112—Multipart MIME
l RFC 2327—SDP: Session Description Protocol
l RFC 2387—The MIME Multipart/Related Content-type
l RFC 2543—SIP: Session Initiation Protocol
l RFC 2617—Http Authentication: Basic and Digest access authentication
l RFC 2782—A DNS RR for specifying the location of services (DNS SRV)
l RFC 2806—URLs for Telephone Calls
l RFC 2833—RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
l RFC 2915—The Naming Authority Pointer (NAPTR) DNS Resource Record
l RFC 2976—The SIP INFO Method
l RFC 3087—Control of Service Context using SIP Request-URI
l RFC 3261—SIP: Session Initiation Protocol (replacement for RFC 2543)
l RFC 3262—Reliability of Provisional Responses in the Session Initiation Protocol (SIP)
l RFC 3263—Session Initiation Protocol (SIP): Locating SIP Servers
l RFC 3264—An Offer/Answer Model with the Session Description Protocol (SDP)
l RFC 3265—Session Initiation Protocol (SIP) - Specific Event Notification
l RFC 3266—Support for IPv6 in Session Description Protocol (SDP)
l RFC 3310—HTTP Digest Authentication Using Authentication and Key Agreement (AKA)
l RFC 3311—The Session Initiation Protocol (SIP) UPDATE Method
l RFC 3312—Integration of Resource Management and SIP
l RFC 3313—Private SIP Extensions for Media Authorization
l RFC 3323—A Privacy Mechanism for the Session Initiation Protocol (SIP)
l RFC 3324—Requirements for Network Asserted Identity
l RFC 3325—SIP Asserted Identity
l RFC 3326—The Reason Header Field for the Session Initiation Protocol (SIP)
l RFC 3361—DHCP-for-IPv4 Option for SIP Servers
l RFC 3372—SIP for Telephones (SIP-T): Context and Architectures
l RFC 3398—ISUP to SIP Mapping
l RFC 3420—Internet Media Type message/sipfrag
l RFC 3428—Session Initiation Protocol (SIP) Extension for Instant Messaging
l RFC 3455—Private Header (P-Header) Extensions to the SIP for the 3GPP
l RFC 3486—Compressing the Session Initiation Protocol (SIP)
l RFC 3489—STUN - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators
(NATs)
l RFC 3515—The Session Initiation Protocol (SIP) Refer Method
l RFC 3550—RTP: Transport Protocol for Real-Time Applications
l RFC 3555—MIME Type Registration of RTP Payload Formats
l RFC 3581—An Extension to the SIP for Symmetric Response Routing
l RFC 3608—SIP Extension Header Field for Service Route Discovery During Registration
l RFC 3611—RTP Control Protocol Extended Reports (RTCP XR)

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