Data Sheet

Phone Features

• Up to 20 simultaneous calls
• Up to 10 handsets
• Up to 10 SIP accounts
• Up to 2 simultaneous calls per handset
• Up to 6 repeaters per base station (RT30)
• Vibration alarm
• Alarm functions: push-button
• Handset selection for receiving a call
• Handset and number selection for placing call
• Paging, intercom, auto answer, dial plan
• Call hold, call transfer, 3-way conference
• Switching between calls
• Call waiting, mute, silence, DND
• Caller ID with name and number
• Anonymous call/Anonymous call rejection
• Call forward: Always/Busy/No Answer
• Speed dial/Voice mail/Redial
• Message Waiting Indication (MWI)
• Music on hold (server-based)
• Local phonebook for up to 1000 entries (stored in the base)
• Remote phonebook/LDAP/XML phonebook
• Phonebook search/import/export
• 100 call history per handset: All/Placed/Missed/Received
• Direct IP call without SIP proxy
• Reset to factory, reboot
• Keypad lock, emergency call
• BroadSoft directory, BroadSoft call log
• Broadworks feature key synchronization
• Shared Call Appearance (SCA)
• XML browser
• Action URI

Personalization 

• 9 ringer melodies
• Screen saver
• Multilingual user interface

Management Features

• Auto-provision via TFTP/FTP/HTTP/HTTPS/RPS
• Auto-provision with PnP
• Handset upgrade: OTA (Over-The-Air)/ No Perception Upgrade
• Configuration: browser/phone/auto-provision
• Trace package and system log export

Audio Features 

•Full-duplex speakerphone
• Hearing Aid Compatibility (HAC) compliant
• FNR (Flexible Noise Reduction)/Noise Cancellation
• Receiver volume control: 5 steps
• Ringer volume control: 5 steps+off
• Multiple advisory tones
• Acoustic warning for low battery status
• DTMF
• Wideband codec: Opus, AMR-WB (optional), G.722
• Narrowband codec: PCMU, PCMA, G.726, G.729, G.729A, iLBC
• VAD, CNG, AGC, PLC, AJB
• AEC
• Support VQ-RTCPXR (RFC6035), RTCP-XR

Network Features

• SIP v1 (RFC2543), v2 (RFC3261)
• SNTP/NTP
• VLAN (802.1Q and 802.1P)
• 802.1x, LLDP • STUN Client (NAT Traversal)
• UDP/TCP/TLS
• IP assignment: Static/DHCP
• Support outbound proxy server backup

Security

• Open VPN
• Transport Layer Security (TLS)
• HTTPS (server/client), SRTP (RFC3711)
• Digest authentication
• Secure configuration file via AES encryption
• Support SHA256/SHA512/SHA
• Three-level configuration mode: Admin/Var/User

DECT Features

• Frequency bands: 1880 ‒ 1900 MHz (Europe), 1920 ‒ 1930 MHz (US)

Interface

• 1 x RJ45 10/100M Ethernet port
• Power over Ethernet (IEEE 802.3af), Class 1

Physical Features

• Indoor Range: 50 m (in ideal conditions)
• Outdoor Range: 300 m (in ideal conditions)
• Battery: 1010 mAh, Lithium-ion, 3.7 V, 3.73 WH
- Up to 40 hours of talk time (in ideal conditions)
- Up to 575 hours of standby time (in ideal conditions)
• 1.8’’ 128 x 160-pixel TFT color screen
• Desktop or wall mountable
• LCD backlight, key backlight
• Energy-saving ECO mode/ECO Mode+
• Backlight keypad with 25 keys:
- Standard ITU telephone keypad, 12 keys, 4x3, with star and pound/hash key
- 5 navigation keys (left, right, up, down, OK)
- 2 softkeys
- 6 function keys (Speaker, message, Off-hook, Cancel, TRAN, Mute)
- 3 side keys (volume up/down, alarm)
- 6 shortcut keys 
• Three LED indicators on W70B:
- 1 x Registration LED
- 1 x Network Status LED
- 1 x Power Indicator LED
• External Yealink AC adapter: AC 100-240 V Input and DC 5 V/600 mA Output
• Color: - Handset: Black ; - Base: Classic Grey
• Handset size: 157 mm x 51 mm x 24 mm
• Base station size: 130 mm x 100 mm x 25.1 mm
• Operating humidity: 10-95%
• Handset operating temperature: 0 to 40°C (+32 to 104°F)
• Handset/Base station storage temperature: -30 to 70°C (-22 to 158°F)
• Base station operating temperature: -10 to +45°C (+14 to 113 °F)