2x16 characters LCD with backlight.
 Voice codec: G.711, G.729AB, G.726, G.723.1 and GSM.
 Supports SIP 2.0 and NAT transverse: STUN mode.
 2xRJ45 ports with router built-in, one for internet, one for PC.

Product Description:

Yealink SIP-T9CM is a feature-rich, cost-effective SIP phone specially designed for ITSPs, small to medium businesses and residential application. It supports 3 user accounts, auto-provision and PoE as well as zero configuration and easy maintenance. As the basic model of the Yealink SIP phones, SIP-T9CM offers high quality audio, a broad range of voice codes and rich telephone features to general level users. Due to its excellent cost-performance ratio and high performance, it is absolutely a good choice for you!

＆#8226; Two RJ45 ports with router built-in, one for internet, one for PC.
＆#8226; Voice codec: G.711, G.729AB, G.726, G.723.1/iLBC and GSM.
＆#8226; Supports SIP 2.0 and NAT transverse: STUN mode.
＆#8226; 2X16 characters LCD with backlight.

Network Features

SIP v1(RFC2543), v2(RFC3261)
Registrar Server: 3 SIP user accounts
Power over Ethernet optional
Outbound Proxy mode
Peer-to-peer SIP link mode
TFTP/DHCP/PPPoE Client
Telnet/HTTP Server
DNS Client
NAT/DHCP Server
QoS

Voice Features

G.711, G.723.1/iLBC, G.726, G.729AB and GSM
VAD, CNG, AEC
Packet Loss Compensation
Adaptive Jitter Buffer
 

Telephony Features

Call Hold
Call Waiting
Call Transfer
Call Forward
Caller ID
Call List
Redial and Flash
Speed Dial
Phone Book
Volume Adjustment
Ring Tone Selection
3-way Conference
Speakerphone
 

Configuration

Web Browser
Console/Telnet
Keypad
Auto-provision
 

Firmware Upgrade

TFTP
Console
HTTP
Auto-provision

Dial Method

Direct IP call without SIP proxy
Dial number via SIP server
Dial URL via SIP server

DTMF Function

In-Band DTMF
Out-of-Band DTMF
SIP Info

IP Assignment

Static IP
DHCP
PPPoE
 

NAT Traversal

STUN
UPnP

Security

HTTP 1.1 basic/digest authentication for Web setup
MD5 for SIP authentication (RFC 2069/RFC 2617)