Linksys BUSINESS SPA922 - Manual (Page 140)

Linksys SPA9x2 Phone Administration Guide
Cisco Confidential--First Draft
133
SIP Tab
SPA9x2 Phone Field Reference
SIP Timer Values (sec)
Parameter Description
SIP T1 RFC 3261 T1 value (RTT estimate), which can range from
0 to 64 seconds. Defaults to .5 seconds.
SIP T2 RFC 3261 T2 value (maximum retransmit interval for
non-INVITE requests and INVITE responses), which can
range from 0 to 64 seconds. Defaults to 4 seconds.
SIP T4 RFC 3261 T4 value (maximum duration a message
remains in the network), which can range from 0 to 64
seconds. Defaults to 5 seconds.
SIP Timer B INVITE time-out value, which can range from 0 to 64
seconds. Defaults to 16 seconds.
SIP Timer F Non-INVITE time-out value, which can range from 0 to 64
seconds.Defaults to 16 seconds.
SIP Timer H INVITE final response, time-out value, which can range
from 0 to 64 seconds.Defaults to 16 seconds.
SIP Timer D ACK hang-around time, which can range from 0 to 64
seconds. Defaults to 16 seconds.
SIP Timer J Non-INVITE response hang-around time, which can
range from 0 to 64 seconds. Defaults to 16 seconds.
SIP Timer J Non-INVITE response hang-around time, which can
range from 0 to 64 seconds. Defaults to 16 seconds.
Reg Max Expires Maximum registration expiration time allowed from the
proxy in the Min-Expires header. If the value is larger
than this setting, the maximum value is used.
Defaults to 7200.
Reg Retry Intvl Interval to wait before the SPA9x2 retries registration
after failing during the last registration.
Defaults to 30.
Reg Retry Long Intvl When registration fails with a SIP response code that
does not match, the SPA9x2 waits for
the specified 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, which
should not be 0.
Defaults to 1200.