Acronyms
SPA9000 Voice System Administration Guide
283
F
MC
Mini-Certificate
MGCP
Media Gateway Control Protocol
MOH
Music On Hold
MOS
Mean Opinion Score (1-5, the higher the better)
ms
Millisecond
MSA
Music Source Adaptor
MWI
Message Waiting Indication
OSI
Open Switching Interval
PCB
Printed Circuit Board
PR
Polarity Reversal
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
SAS
Streaming Audio Server
SDP
Session Description Protocol
SDRAM
Synchronous DRAM
sec
seconds
SIP
Session Initiation Protocol
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