Specifications: Interfaces:
Telephone Interfaces Two (2) FXS ports
Network Interfaces One (1) 10/100 Mbps auto-sensing ethernet ports (RJ45)
LED Indicators POWER, INTERNET, PHONE1, PHONE2
Factory Reset Button Yes
Voice, Fax, Modem:
Telephony Features Caller ID display or block, call waiting, flash, blind or attended transfer, forward,
hold, do not disturb, 3-way conference
Voice Codecs G.711 with Annex I (PLC) and Annex II (VAD / CNG), G.723.1, G.729A/B, G.726, iLBC,
OPUS, dynamic jitter buffer, advanced line echo cancellation
Fax Over IP T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax
Pass-through
Short / Long Haul Ring Load 2 REN: Up to 1 km on 24 AWG
Caller ID Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
Disconnect Methods Busy Tone, Polarity Reversal / Wink, Loop Current
Signaling:
Network Protocols...
Additional Features: Technical Information
Features:
Directory
Speed Dial
Programmable
Display & Graphics
Screen Size:
3.5"
Screen Type:
TFT LCD
Screen Resolution:
480 x 272
Backlight:
Yes
Controls/ Indicators
Buttons & Keys:
Illuminated Buttons:
Off (dark): Line available
Green, steady: Line in use
Red, steady: Line in use by shared line
Amber, flashing: Line ringing
Illuminated Page Buttons
Off (dark): Page not in focus
Green, steady: Page in focus
Amber, flashing: Page not in focus, with one or more alerting or on-hold calls present on page
Power Description
Power Source:
AC Adapter
Input Voltage:
48 V DC
Physical Characteristics
Height:
9"
Width:
4.5"
Depth:
1.6"
Weight (Approximate):
15.80 oz
Miscellaneous
Compatibility:
Cisco 8800 IP Phones:
8851
8851NR
8861...
Specifications: Display:
4.3" 272 x 480-pixel color display with backlight
16 bit depth color
Three page views are possible
Different color icons for each function shown on the LCD
Features Keys and Indicator:
20 physical keys each with a dual-color LED
40 additional keys through page switch
3 independent control keys with illuminated LED are used for fast switching pages
Programmable for shared line, BLF List, call park,conference, forward, group pickup, group listening, LDAP, XML Browser
Features:
Wallpaper
Screensaver
Power saving
Avatar Display on SFB and UC platform (pending)
Stand with 2 adjustable angles
For support of two or three Expansion Modules, an external Yealink power adapter (5V / 2A) is required.
Up to three EXP50 can be attached on any Yealink
T5 Series IP phones:
USB port (2.0 compliant) for data in and out
USB port (2.0 compliant) for: wired / wirele...
Protocols: 10/100/1000 Base-TX across LAN and PC ports; Conforms to IEEE802.3- 2005 (Clause 40) for physical media attachment; Conforms to IEEE802.3- 2002 (Clause 28) for link partner auto-negotiation; Manual or dynamic host configuration protocol (DHCP) network setup
Protocols: LLDP-MED for VLAN discovery; IPv4; TCP (RFC 793) in SSL/TLS; Domain Name System (DNS): A records (RFC 1706), SRV records (RFC 2782), RTP (RFC 1889, 1890), RFC 5966
Security: HTTPS secure provisioning; Local Access Interface: IVR password
Protocols: Network protocols, supported
10/100/1000 Base-TX across LAN and PC ports; Conforms to IEEE802.3- 2005 (Clause 40) for physical media attachment; Conforms to IEEE802.3- 2002 (Clause 28) for link partner auto-negotiation; Manual or dynamic host configuration protocol (DHCP) network setup
Frequency Band: Wireless mic: 1921.536 - 1928.448 MHz
Base unit: 1921.536 - 1928.448 MHz
: Automatic gain control
2-line backlit display with date and time
Wireless microphone battery low indicator; flashing LED
Wireless microphone auto power off; when base powered off
Connects to / supports one analog line; POTS interface
10 ring tones / melodies; 6 ring levels
Eco mode (talk mode)
10 speed dial entries
Redial/last number redial
Pre-dialing with editing
Mute indicator; red
: Wireless mic: Ni-MH battery pack; 2.4V; 400 mAh rechargeable battery
Base unit adapter: Input: 100 - 240V AC 50/60 Hz
Output: 9V DC @ 1500 mA
Security: Security management
802.1X Authentication and EAPOL Media encryption via SRTP; Digest authentication; Encrypted configuration files; HTTPS secure provisioning; Password login; Support for signed software executables; Support for URL syntax with password; Transport Layer Security (TLS); SRTP media encryption using AES 256 bits