Call Admission Control (Cac) Configuration - Samsung WEC8500 Operation Manual

Call Admission Control (CAC) Configuration

The CAC function is provided to protect existing calls from the calls incoming to a wireless
LAN. The APC does not allow an additional call when maximum allowed number of calls
per radio is reached.
SIP ALG Configuration
To make Call Admission Control (CAC) working, the Session Initiation Protocol (SIP)
Application Layer Gateway (ALG) function must be enabled. The SIP ALG analyses a SIP
packet and forwards VoIP communication status to the CAC.
Configuration using CLI
The SIP ALG related commands are as follows:
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To enable SIP ALG, execute the command as follows:
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APC# configure terminal
WEC8500/WEC8050 (APC) Operation Manual v10.1
©Samsung Electronics America
sipalg enable: Configures whether to enable the SIP ALG function.
sipalg monitor-port: Configures SIP packet port to monitoring. It can be
set max. 5 ports. (default: 5060)
sipalg sip-error-resp-enable (SIP ERROR RESPONSE): Configures how
to reject a received call when maximum allowed number of calls is
exceeded.
o Disable (default): No response for a received call connection request
message.
The received message is not forwarded to the called side.
o Enable: Rejects by transmitting 503 Service Unavailable SIP
response for a received call connection request message. The
received message is not forwarded to a called side.
sipalg sip-detect-long-call-enable (SIP DETECT LONG DURATION
CALL): Configures whether to delete an internal resource by detecting
abnormal remaining calls. The values configured in the below two timers
are used to judge an abnormal remaining call:
o SIP No Answer Timeout (SIP Long Call Setuptimer): Maximum
allowed time of the status before call connection (range: 300-3600,
default: 600)
o SIP Connect Timeout (SIP Long Call EstblshTimer): Maximum
allowed time for a connected call (range: 3600-86400, default: 7200)
sipalg sip-long-call-timeout (SIP NO ANSWER TIMEOUT, SIP
CONNECT TIMEOUT): Configures a time required to judge an abnormal
remaining call and enter SIP No Answer Timeout and SIP Connect
Timeout in order.
Go to the configure mode of the CLI.
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