Polycom manual System Components, SpectraLink 8020/8030 Wireless Telephone, Access points

SpectraLink Wireless Telephone Overview

System Components

SpectraLink 8020/8030 Wireless Telephone

The SpectraLink 8020/8030 Wireless Telephone is a lightweight, durable handset specifically designed for mobile workplace use within a facility using SIP and an 802.11 wireless LAN. The handsets are to be used on-premises; they are not cellular or satellite phones.

SpectraLink 8020/8030 Wireless Telephones use direct-sequence spread spectrum radio technology (DSSS) to transmit audio packets over wireless LAN APs that support SpectraLink Voice Priority (SVP).

SpectraLink 8000 SVP Server

SVP is the SpectraLink quality of service (QoS) mechanism that is implemented in the AP to enhance voice quality over the wireless network. SVP gives preference to voice packets over data packets on the wireless medium, increasing the probability that all voice packets are transmitted efficiently and with minimum or no delay. SVP is fully compatible with the IEEE 802.11b standard.

The SpectraLink 8000 SVP Server is an Ethernet LAN appliance that works with the AP to provide QoS on the wireless LAN. All SIP packets to and from the SpectraLink 8020/8030 Wireless Telephones pass through the SpectraLink 8000 SVP Server and are encapsulated for prioritization as they are routed to and from other SIP devices.

Access points

Supplied by third-party vendors, APs provide the connection between the wired Ethernet LAN and the wireless (802.11) LAN. Access points must be positioned in all areas where handsets will be used. The number and placement of APs will affect the coverage area and capacity of the wireless system. Typically, the requirements for use of SpectraLink 8020/8030 Wireless Telephones are similar to that of wireless data devices.

Access points must utilize SpectraLink Voice Priority (SVP). See the Polycom WLAN Compatibility Table for information about APs that support SVP.

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