Sip Encryption; Mono - Polycom RealPresence 800s Administrator's Manual

Polycom® RealPresence Collaboration Server 800s Administrator's Guide

SIP Encryption

The ENABLE_SIRENLPR_SIP_ENCRYPTION System Flag enables the SirenLPR audio
algorithm when using encryption with the SIP protocol.
The default value of this flag is NO meaning SirenLPR is disabled by default for SIP
participants in an encrypted conference. To enable SirenLPR the System Flag must be added
to system.cfg and its value set to YES.

Mono

The Siren 22, G.719 and SirenLPR mono audio algorithms are supported at the following bit
rates:
Table 3-8
Audio Algorithm
Siren22 64k
Siren22 48K
Siren22_32k
G.719_64k
G.719_48k
G.719_32k
G.728 16K
G.719_64k
SirenLPR_48k
Siren22_48K
G.719_48k
G.7221C_48k
Siren14_48k
SirenLPR_32k
Siren22_32k
G.719_32k
G.7221C_32k
Siren14_32k
SirenLPR
SirenLPR
SirenLPR
3-26
Siren22, G.719 and SirenLPR Mono vs Bitrate
Minimum Bitrate (kbps)
384
384
256
128
64
48
32
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