Linksys BUSINESS SPA922 - Manual (Page 56)

Linksys SPA9x2 Phone Administration Guide 49
SIP Timer Values
Setting SIP Parameters
SIP T4 RFC 3261 T4 value, which is the maximum duration a message remains in
the network. Ranges from 0 to 64 seconds.
Defaults to 5 seconds.
SIP Timer B RFC 3261 INVITE transaction time-out value. Ranges from 0 to 64 seconds.
Defaults to 16 seconds.
SIP Timer F RFC 3261 Non-INVITE transaction time-out value. Ranges from 0 to 64
seconds.
Defaults to 16 seconds.
SIP Timer H RFC 3261 INVITE final response time-out value for ACK receipt. Ranges
from 0 to 64 seconds.
Defaults to 16 seconds.
SIP Timer D FRC 3261 wait time for response retransmits. Ranges from 0 to 64 seconds.
Defaults to 16 seconds.
SIP Timer J RFC 3261 Wait time for Non-INVITE request retransmits. Ranges from 0 to
64 seconds.
Defaults to 16 seconds.
INVITE Expires INVITE request Expires header value. If you enter 0, the Expires header is
not included in the request. Ranges from 0 to
19999999999999999999999999999999.
Defaults to 240 seconds.
ReINVITE Expires ReINVITE request Expires header value. If you enter 0, the Expires header is
not included in the request. Ranges from 0 to
19999999999999999999999999999999.
Defaults to 30
Reg Min Expires Minimum registration expiration time allowed from the proxy in the
Expires header or as a Contact header parameter. If the proxy returns a
value less than this setting, the minimum value is used.
Defaults to 1 second.
Reg Max Expires Maximum registration expiration time allowed from the proxy in the Min-
Expires header. If the value is greater than this setting, the maximum value
is used.
Defaults to 7200 seconds.
Reg Retry Intvl
(see Note below)
Interval to wait before the SPA9x2 retries registration after failing during
the previous registration. Do not enter 0.
Defaults to 30 seconds.
Reg Retry Long Intvl
(see Note below)
When registration fails with a SIP response code that does not match the
Retry Reg response status code (RSC) value (see next table), the SPA9x2
waits for this length of time before retrying.
If this interval is 0, the SPA9x2 stops trying. This value should be much
larger than the Reg Retry Intvl value.
Defaults to 1200 seconds.
Parameter Description