Yealink SIP-T48G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
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The following RFC’s and Internet drafts are supported:
 RFC 1321—The MD5 Message-Digest Algorithm
 RFC 1889—RTP Media control
 RFC 2112—Multipart MIME
 RFC 2327—SDP: Session Description Protocol
 RFC 2387—The MIME Multipart/Related Content-type
 RFC 2543—SIP: Session Initiation Protocol
 RFC 2617—Http Authentication: Basic and Digest access authentication
 RFC 2782—A DNS RR for specifying the location of services (DNS SRV)
 RFC 2806—URLs for Telephone Calls
 RFC 2833—RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
 RFC 2915—The Naming Authority Pointer (NAPTR) DNS Resource Record
 RFC 2976—The SIP INFO Method
 RFC 3087—Control of Service Context using SIP Request-URI
 RFC 3261—SIP: Session Initiation Protocol (replacement for RFC 2543)
 RFC 3262—Reliability of Provisional Responses in the Session Initiation Protocol (SIP)
 RFC 3263—Session Initiation Protocol (SIP): Locating SIP Servers
 RFC 3264—An Offer/Answer Model with the Session Description Protocol (SDP)
 RFC 3265—Session Initiation Protocol (SIP) - Specific Event Notification
 RFC 3266—Support for IPv6 in Session Description Protocol (SDP)
 RFC 3310—HTTP Digest Authentication Using Authentication and Key Agreement
(AKA)
 RFC 3311—The Session Initiation Protocol (SIP) UPDATE Method
 RFC 3312—Integration of Resource Management and SIP
 RFC 3313—Private SIP Extensions for Media Authorization
 RFC 3323—A Privacy Mechanism for the Session Initiation Protocol (SIP)
 RFC 3324—Requirements for Network Asserted Identity
 RFC 3325—SIP Asserted Identity
 RFC 3326—The Reason Header Field for the Session Initiation Protocol (SIP)
 RFC 3361—DHCP-for-IPv4 Option for SIP Servers
 RFC 3372—SIP for Telephones (SIP-T): Context and Architectures
 RFC 3398—ISUP to SIP Mapping
 RFC 3420—Internet Media Type message/sipfrag
 RFC 3428—Session Initiation Protocol (SIP) Extension for Instant Messaging
 RFC 3455—Private Header (P-Header) Extensions to the SIP for the 3GPP

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