Phone Features
• Up to 20 simultaneous calls
• Up to 10 handsets
• Up to 10 VoIP accounts
• Up to 2 simultaneous calls per handset
• Up to 6 repeaters per base station (RT30)
• Handset selection for receiving 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/Voicemail/Redial
• Message Waiting Indication (MWI)
• Music on hold (server-based)
• Local phonebook for up to 1000 entries (store
the base)
• Remote phonebook/LDAP/XML phonebook
• Phonebook search/import/export
• 100 call history per handset: All/Placed/Missed/
Received/Forward
• 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

Audio Features
Full-duplex speakerphone
Hearing Aid Compatibility (HAC) compliant
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: AMR-NB (optional), PCMU,
PCMA, G.726, G.729, G.729A, iLBC
VAD, CNG, AGC, PLC, AJB
AEC (supported by W56H)
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

Physical Features
Indoor Range: 50m (in ideal conditions)
Outdoor Range: 300m (in ideal conditions)
Standby Time: 400 hours (in ideal conditions)
Talk Time: 30 hours
2.4’’ 240x320 pixels color display
Desktop or wall mountable
LCD backlit, key backlit
Energy-saving ECO mode/ECO Mode+
12 key numerical keypad, 5 navigation keys, 2
softkeys, 6 function keys, 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 100-240V Input and DC 5V/600mA Output
Color: Handset: Alabaster Silver ; Base: Classic
Grey
Handset size: 175mm x 53mm x 20.3mm
Base station size: 130mm x 100mm x 25.1mm
Operating humidity: 10 ~ 95%
Operating temperature: 0~+40°C (+32~104°F)

Package Features
Package contents:
- W56H Handset
- W70B Base Station
- Base Stand
- USB Charger Cradle
- Two Power Adapters
- Ethernet Cable
- Belt Clip
- Rechargeable Battery
- Quick Start Guide
Qty/CNT: 10 PCS
Giftbox size: 205mm × 196mm × 95mm
Carton meas: 495mm × 406mm × 223mm
N.W: 7.5 kg
G.W: 8.3 kg