Glossary - Linksys SPA941 Administration Manual

MOH Music On Hold
MOS Mean Opinion Score (1-5, the higher the better)
ms Millisecond
MWI Message Waiting Indication
OSI Open Switching Interval
PCB Printed Circuit Board
PS Provisioning Server
PSQM Perceptual Speech Quality Measurement (1-5, the lower the better)
PSTN Public Switched Telephone Network
NAT Network Address Translation
OOB Out-of-band
REQT (SIP) Request Message
RESP (SIP) Response Message
RSC (SIP) Response Status Code, such as 404, 302, 600
RTP Real Time Protocol
RTT Round Trip Time
SDP Session Description Protocol
SDRAM Synchronous DRAM
sec seconds
SIP Session Initiation Protocol
SP Service Provider
SPA Linksys IP Telephone
SSL Secure Socket Layer
TFTP Trivial File Transfer Protocol
TCP Transmission Control Protocol
UA User Agent
uC Micro-controller
UDP User Datagram Protocol
URL Uniform Resource Locator
VM Voice Mail
VMWI Visual Message Waiting Indication/Indicator
VQ Voice Quality
WAN Wide Area Network
XML Extensible Markup Language

• Glossary

•
ACD (Automatic Call Distribution): A switching system designed to allocate incoming calls to
certain positions or agents in the order received and to hold calls not ready to be handled (often
with a recorded announcement).
•
Area Code: A Three digit code used in North America to identify a specific geographic telephone
location. The first digit can be any number between 2 and 9. The second and third digits can be
any number.
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