Spectralink Voice Priority (Svp) And Quality Of Service; System Timing - Polycom SpectraLink 1725-36028-001 Administration Manual

SpectraLink 8000 Telephony Gateway Administration Guide
SpectraLink Voice Priority (SVP)
and Quality of Service

System Timing

10
Up to forty SpectraLink 8000 Telephony Gateways may be connected
to the LAN for a maximum capacity of 640 SpectraLink Wireless
Telephones. When five or more SpectraLink 8000 Telephony
Gateways are installed, the SpectraLink 8000 SVP Server must also be
installed to manage the increased load.
SVP is the SpectraLink quality of service (QoS) mechanism that is
implemented in the handset and an access point (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 802.11
standards.
The SpectraLink 8000 SVP Server is an Ethernet LAN device that
works with the APs to provide QoS on the wireless LAN. Voice
packets to and from the handsets are intercepted by the SpectraLink
8000 SVP Server and encapsulated for prioritization as they are routed
to and from the SpectraLink 8000 Telephony Gateway. See SpectraLink
8000 SVP Server Administration Guide for SRP for detailed information
about this device.
The SpectraLink 8000 Telephony Gateways provide SVP when there
are four or fewer Gateways in the system. In this configuration,
system timing is done through the IPC cables between each Gateway.
If a SpectraLink 8000 SVP Server is installed in a system with four or
fewer Gateways, the IPC cables are not required. If there are five or
more Gateways in the system, then one or more SpectraLink 8000 SVP
Server must be installed to handle the increased load and additional
timing requirements. See SpectraLink 8000 SVP Server Administration
Guide for SRP.
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