Yealink SIP-T48G Administrator's Guide

Appendix
831
 RFC 3486—Compressing the Session Initiation Protocol (SIP)
 RFC 3489—STUN - Simple Traversal of User Datagram Protocol (UDP) Through
Network Address Translators (NATs)
 RFC 3515—The Session Initiation Protocol (SIP) Refer Method
 RFC 3550—RTP: Transport Protocol for Real-Time Applications
 RFC 3555—MIME Type Registration of RTP Payload Formats
 RFC 3581—An Extension to the SIP for Symmetric Response Routing
 RFC 3608—SIP Extension Header Field for Service Route Discovery During
Registration
 RFC 3611—RTP Control Protocol Extended Reports (RTCP XR)
 RFC 3665—Session Initiation Protocol (SIP) Basic Call Flow Examples
 RFC 3666—SIP Public Switched Telephone Network (PSTN) Call Flows.
 RFC 3680—SIP Event Package for Registrations
 RFC 3702—Authentication, Authorization, and Accounting Requirements for the SIP
 RFC 3711—The Secure Real-time Transport Protocol (SRTP)
 RFC 3725—Best Current Practices for Third Party Call Control (3pcc) in the Session
Initiation Protocol (SIP)
 RFC 3842—A Message Summary and Message Waiting Indication Event Package
for the Session Initiation Protocol (SIP)
 RFC 3856—A Presence Event Package for Session Initiation Protocol (SIP)
 RFC 3863—Presence Information Data Format
 RFC 3890—A Transport Independent Bandwidth Modifier for the SDP
 RFC 3891—The Session Initiation Protocol (SIP) “Replaces” Header
 RFC 3892—The Session Initiation Protocol (SIP) Referred-By Mechanism
 RFC 3959—The Early Session Disposition Type for SIP
 RFC 3960—Early Media and Ringing Tone Generation in SIP
 RFC 3966—The tel URI for telephone number
 RFC 3968—IANA Registry for SIP Header Field
 RFC 3969—IANA Registry for SIP URI
 RFC 4028—Session Timers in the Session Initiation Protocol (SIP)
 RFC 4083—3GPP Release 5 Requirements on SIP
 RFC 4235—An INVITE-Initiated Dialog Event Package for the Session Initiation
Protocol (SIP)
 RFC 4244—An Extension to the SIP for Request History Information
 RFC 4317—Session Description Protocol (SDP) Offer/Answer Examples
 RFC 4353—A Framework for Conferencing with the SIP
 RFC 4458—SIP URIs for Applications such as Voicemail and Interactive Voice
Response (IVR)

Yealink SIP-T48G Specifications

General

Expansion module support	Yes
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Volume control	-
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
AC adapter input voltage	100 - 240 V
Number of handles included	1 pc(s)

Weight and Dimensions

Width	266 mm
Height	185 mm