Default Value 0
Configuration File Reference DSCP_SIP_n (Page 217)
4.5.2.11 SIP extensions
Supports 100rel (RFC 3262)
Description Selects whether to add the option tag 100rel to the "Supported" header
of the INVITE message. For details, refer to RFC 3262.
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 No
Configuration File Reference SIP_100REL_ENABLE_n (Page 222)
Supports Session Timer (RFC 4028)
Description Specifies the length of time, in seconds, that the unit waits before
terminating SIP sessions when no reply to repeated requests is
received. For details, refer to RFC 4028.
Value Range 0, 60–65535 (0: Disable)
Default Value 0
Configuration File Reference SIP_SESSION_TIME_n (Page 216)
4.5.2.12 NAT Identity
Keep Alive Interval
Description Specifies the interval, in seconds, between transmissions of the Keep
Alive packet to the unit in order to maintain the NAT binding information.
Note
• This setting is available only when [Transport Protocol] is set
to [UDP].
Value Range 0, 10–300 (0: Disable)
Default Value 0
Configuration File Reference PORT_PUNCH_INTVL_n (Page 224)
100 Administrator Guide Document Version 2011-06
4.5.2 SIP Settings [Line 1]–[Line 4]