Power:
IEEE 802.3af Power over Ethernet; External universal AC power supply: 100-240 V, 24 V, 0.5A, 2.5 mm DC plug
Display Size:
248 x 68 pixels
Display Backlight:
White LED backlight with custom intensity control
Keypad Type:
Standard 12-key keypad
Soft Keys:
4 context-dependent soft keys
Microphone Pickup Range:
10 ft (3 m)
Microphone Type:
3 cardioid microphones
Microphone Frequency Response:
200-7000 Hz
Loudspeaker Frequency Response:
220-7000 Hz
Max Volume:
Adjustable to 86 dB at 0.5 meter peak volume
Full-Duplex:
Type 1 compliant with IEEE 1329
Audio Features:
Voice activity detection, Comfort noise fill, DTMF tone generation/DTMF event RTP payload, Low-delay audio packet transmission, Adaptive jitter buffers, Packet loss concealment, Acoustic echo cancellation, Background noise suppression
Supported Codecs:
G.711 (A-law and Mu-law), G.729a (Annex B), G.722, iLBC 13.33 and 15.2kbps
SIP Call Handling:
Call hold, Call transfer, divert (forward) and pickup, Distinctive incoming call treatment/call waiting, Advanced Local three-way conferencing, One-touch speed dial, redial, Remote missed call notification
SIP Features:
Automatic off-hook call placement, SIP URI dialing, Do not disturb function, Shared call/bridged line appearance, Busy Lamp Field (BLF), Multicast Group Paging and Push-to-Talk
Other Features:
Automated failover (SIP to PSTN), SIP Server Redundancy, Time and date display/call timer, User-configurable contact directory and call history, Corporate Directory (LDAP) support, User selectable ringer tones, Wave file support for call progress ton
Network and Provisioning:
IP Address Configuration (DHCP and Static IP), Time synchronization with SNTP server, FTP/TFTP/FTPS/HTTP/HTTPS server-based central provisioning, Web portal for individual unit configuration and online software upgrade, QoS Support, Telchemy® VQmon®
Local Digit Map:
Dialing plan, Hardware diagnostics, Status and statistics, Reset to factory settings
Security:
Transport Layer Security (TLS), Encrypted configuration files, Digest authentication, Password login, Support for URL syntax with password for boot server, HTTPS secure provisioning, Support for signed software executables, IEEE 802.1x Network Access
Safety Certifications:
CE Mark, EN60950-1, IEC60950-1, UL60950-1, CAN/CSA C22.2 No.60950-1-03, AS/NZS60950-1, RoHS Compliant
EMC Certifications:
FCC Part 15 (CFR 47) Class B, ICES-003 Class B, EN55022 Class B, CISPR22 Class B, AS/NZS CISPR22 Class B, VCCI Class B, EN22024
Telecom Certifications:
FCC Part 68, AS/ACIF S002/S004, Telepermit, KC, GOST-R, TRA
Protocol Support:
IETF SIP (RFC 3261 and companion RFCs)
Expansion Microphones:
2 x expansion microphones (200-7000 Hz)
Operating Temperature:
32-104° F (0-40° C)
Snippet:
The Polycom SoundStation Duo is a dual-mode conference phone offering crystal clear audio for group conferencing, with connectivity for both analog and IP (VoIP) telephony.
