Default Value INVITE
Configuration File Reference SIP_SESSION_METHOD_n
Enable 100rel (RFC 3262)
Description Specifies whether to add the option tag 100rel to the "Supported"
header of the INVITE message.
Value Range
• Yes
• No
Note
• If you select [Yes], the Reliability of Provisional Responses
function will be enabled. The option tag 100rel will be added to
the "Supported" header of the INVITE message and to the
"Require" header of the "1xx" provisional message. If you
select [No], the option tag 100rel will not be used.
Default Value Yes
Configuration File Reference SIP_100REL_ENABLE_n
Enable SSAF (SIP Source Address Filter)
Description Selects whether to enable SSAF for the SIP servers (registrar server,
proxy server, and presence server).
Value Range
• Yes
• No
Default Value No
Configuration File Reference SIP_DETECT_SSAF_n
Enable c=0.0.0.0 Hold (RFC 2543)
Description Selects whether to enable the RFC 2543 Call Hold feature on this
line.
Value Range
• Yes
• No
Note
• If you select [Yes], the "c=0.0.0.0" syntax will be set in SDP
when sending a re-INVITE message to hold the call. If you
select [No], the "c=x.x.x.x" syntax will be set in SDP.
Default Value Yes
Configuration File Reference RFC2543_HOLD_ENABLE_n
Transport Protocol
Description Selects which transport layer protocol to use for sending SIP packets.
4.5.2 SIP Settings [Line 1]–[Line n]
122 Administrator Guide Document Version: 2017-07