SIP User's Manual 544 Document #: LTRT-12804
Mediant 800 MSBG
Examples:
♦ expires (contact's header's param)
♦ duration (retry-after header's param)
♦ unknown-param (any unknown param can be added/removed from the
header)
f. param
Description: Params can be as values for match and action
Syntax: "param" "." Param-sub-element "." Param-dir-element "." (Call-Param-
entity / ipg-param-entity)
Examples:
♦ param.ipg. src.user
♦ param.ipg.dst.host
♦ param.ipg.src.type
♦ param.call.src.user
g. param-sub-element
Description: determines whether the param being accessed is a call or an IP
Group
Syntax: ( "call" / "IPG" )
Examples:
♦ call – relates to source or destination URI for the call
♦ ipg – relates to the source or destination IP Group
h. param-dir-element
Description: direction relating to the classification
Syntax: ( "src" / "dst" )
Examples:
♦ src – relates to the source
♦ dst – relates to the destination
i. call-param-entity
Description: parameters that can be accessed on the call
Syntax: ( "user" )
Examples:
♦ user – refers to the username in the request-URI for call
j. ipg-param-entity
Description: name of the parameter
Syntax: ( "user" / "host" / "type" )
Examples:
♦ user – refers to the contact user in the IP Group
♦ host – refers to the group name in the IP Group table
♦ type – refers to the type field in the IP Group table
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