Whether your conference rooms use analog lines or you've already migrated to Voice over IP (VoIP) telephony, the SoundStation Duo phone delivers the ultimate deployment flexibility for small to midsize rooms. 

Audio Output 
Connectivity Technology: Wired 

CE Cables (Details) 
Length: 7 ft 
Type: Network cable 
Type: Phone line cable 
Type: Power cable 

Dimensions & Weight (Base) 
Depth: 13.6 in 
Height : 2.5 in 
Weight: 1.6 lbs 
Width: 12.9 in 

Display 
Backlit: Yes 
Color Support: Monochrome 
Display Location: Base 
Display Resolution: 248 x 68 pixels 
Type : LCD display 

Header 
Brand: Polycom 
Manufacturer: Polycom Telephony 
Model: Duo 
Packaged Quantity : 1 
Product Line: Polycom SoundStation 

IP Telephony 
IP Address Assignment: DHCP, Static 
Network Features: Lightweight Directory Access Protocol (LDAP), Network Address Translation (NAT) 
Network Ports Qty: 1 x Ethernet 10Base-T/100Base-TX 
Network Protocols: HTTP, HTTPS, TFTP 
Power Over Ethernet (PoE) Support: Yes 
Quality of Service: IEEE 802.1p, IEEE 802.1Q (VLAN), Type of Service (ToS) 
Voice Codecs: 
G.711a, G.711u, G.722, G.729ab, iLBC 
Voice Features: Acoustic echo cancellation (AEC), Voice activity detection (VAD) 
VoIP: Yes 
VoIP Protocols: SIP 

Miscellaneous 
Compliant Standards: ANATEL, AS/ACIF S004, AS/NZS 60950-1, CISPR 22 Class B, CSA C22.2 No. 60950-1-03, EN 60950-1, EN55022 Class B, FCC CFR47 Part 15 B, FCC Part 68, GOST-R, ICES-003 Class B, IEC 60950-1, KC, NTRA, RoHS, UL 60950-1, VCCI Class B ITE 
Included Phone Accessories: Power adapter 

Phone Connections 
Connector Type: RJ-9 
Qty: 2 
Qty: 2 
Type: Microphone jack 
Connector Type: Sub-mini-phone 2.5 mm 
Type: Headset jack 
Qty: 1 
Type: PSTN line jack 

Power Adapter 
Form Factor: External 
Type: Power adapter 

Service 
Support Details Full Contract Period: 1 year 
Support Details Type: Limited warranty 

Telephone 
Conference Call Capability: 3-way 
Dialer Location: Base 
Dialer Type: Keypad 
Firmware Upgradable: Yes 
Type: Conference VoIP phone 

Telephone Memory 
Caller ID Memory: 100 names & numbers 
Dialed Calls Memory: 100 
Missed Calls Memory: 100 

Conference Phone 
Features: Echo cancellation, HD Voice 
Package Content: Conference phone console 

Features 
Additional Features: Built-in web server, On-hook dialing, Push-to-talk mode 
Additional Functions: Built-in clock, Call timer 
Call Forwarding: Yes 
Call Hold: Yes 
Call Services: Call Forwarding, Call Hold, Call Transfer, Call Waiting, Caller ID,

Voice Mail 
Call Transfer: Yes 
Call Waiting: Yes 
Caller ID: Yes 
Function Buttons: Conference button, Mute button, Navigator key, Redial button 
Menu Operation: Yes 
Ringer Control: Yes 
Speakerphone: Yes 
Speakerphone Type: Digital duplex 
Voice Mail Capability: Yes 
Volume Control: Yes 

Service & Support 
Type: 1 year warranty