Polycom SoundPoint IP 550 is the first IP phone to use the revolutionary Polycom HDvoice technology; it has two 10/100 Mbps Ethernet ports, audio codecs – G.722 (wideband), G.711μ/A, G.729A, there are speakerphone buttons, mute and call hold, and is equipped with an LCD display with a resolution of 320 x 160 pixels.
Polycom SoundPoint IP 550 is the first IP phone to use the revolutionary Polycom HDvoice technology. It also has two 10/100 Mbps Ethernet ports. Audio codecs are G.722 (wideband), G.711μ/A, G.729A. The IP 550 phone has speakerphone buttons, mute and call hold settings. The IP phone has an LCD display with a resolution of 320 x 160 pixels. The RJ-9 port is used to connect an additional handset. By connecting expansion modules or using the USB port, you can further expand the capabilities of the device.
Key features of the Polycom SoundPoint IP 550 SIP phone:
Session Initiation Protocol (SIP)
Codecs
* G.711 (A-law, μ-law);
* G.729A (Annex B);
Audio
* Full-duplex speakerphone with Polycom Acoustic Clarity Technology;
Frequency range 300-3300Hz for handset, headset and loudspeaker;
* individual volume settings for each audio channel with levels displayed on the display screen;
* voice activity detector;
* comfortable noise generator;
* DTMF tone generation/DTMF sending via RTP;
* Adaptive jitter correction and packet loss compensation – significant improvement in sound quality;
* low latency in packet transmission;
* acoustic echo cancellation;
* background noise suppression;
Display 320 x 160 pixels graphic LCD with backlight.
Keys
* 4 context-sensitive programmable keys;
* 26 special keys:
- 4 line selection keys with two-color (red/green) indicator;
- 8 function keys;
- 6 display settings/menu navigation keys;
- 2 volume control keys;
- the Mute key is illuminated;
- the headset selection key is illuminated;
- the loudspeaker power button lights up;
- call hold key (Hold);
Network characteristics
* Two 10/100Mbps Ethernet ports;
* Manual or DHCP IP address setting;
* Time and date synchronization via SNTP;
* Central provisioning for multi-user use via FTP, TFTP, HTTP or HTTPS server;
* Support for boot and call servers;
* Web server for individual phone settings;
* QoS support – IEEE 802.1p/Q tagging (VLAN), Layer 3 TOS, and DSCP;
* Network Address Translation (NAT) for static configurations and "Keep-Alive" SIP signaling;
* RTCP support (RFC 1889)
* event log;
* System logs;
* local digital map;
* hardware diagnostics;
* Status and statistics report;
Safety
* Transport Layer Security (TLS);
* encrypted configuration files;
* Digest authentication;
* Password, username;
* Support URL syntax with password for boot server;
* Ensuring HTTPS security;
* Support for "iconic" executable software modules;
Nutrition
* Built-in IEEE 802.3af Power over Ethernet auto-sensing;
* External AC adapter (24V, 500mA);
Dimensions (WxHxDxL), weight 26.5cm x 15cm x 19cm x 6.5cm, 1.26 kg
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