Polycom HD Voice provides realistic, rich, and clear voice quality. The product offers advanced features and applications, including four lines, high-resolution backlit display, shared call/bridge line appearance, busy line field (BLF), buddy lists, and support for browsing XHTML web applications. It is easy to install and configure, supports remote deployment and upgrading. It has high interoperability, supporting various SIP-based IP PBX and Microsoft's Live Communications Server.
The SoundPoint IP 550 is a four‑line SIP desk phone that delivers high‑definition voice quality with Polycom HD Voice technology. It offers advanced functions such as shared call/bridge, busy line appearance, a high‑resolution LCD, and a built‑in XHTML browser for web applications.
The device includes PoE power, dual Ethernet ports, support for multiple audio codecs, extensive security features, and complies with numerous international certifications. Physical specifications include a compact form factor, lightweight design, and operation across a wide temperature range. This manual is written in Chinese.
| Maximum Lines | 4 |
|---|---|
| Display Resolution | 320 x 160 pixels, grayscale LCD |
| Power over Ethernet | IEEE 802.3af PoE (auto‑sensing) |
| Dimensions | 10.5 in x 6 in x 7.5 in x 2.5 in |
| Weight | 2.4 lb (1.1 kg) |
| Operating Temperature | +10 °C to +40 °C |
| Supported Audio Codecs | G.722, G.711 µ/A, G.729A |
It supports up to four simultaneous lines.
Yes, it has built‑in IEEE 802.3af PoE with auto‑sensing.
The phone supports G.722 wideband, G.711 µ/A, and G.729A codecs.
It measures 10.5 in × 6 in × 7.5 in × 2.5 in.