Chapter 25 ALG Screen
ZyWALL 2WG User’s Guide
470
SIP Timeout
Most SIP clients have an “expire” mechanism indicating the lifetime of signaling
sessions. The SIP user agent sends registration packets to the SIP server
periodically and keeps the session alive in the ZyWALL.
If the SIP client does not have this mechanism and makes no calls during the
ZyWALL SIP timeout (default 60 minutes), the ZyWALL SIP ALG drops any
incoming calls after the timeout period. Enter the SIP signaling session timeout
value.
Apply
Click
Apply
to
save your changes back to the ZyWALL.
Reset
Click
Reset
to begin configuring this screen afresh.
Table 150
ADVANCED > ALG (continued)
LABEL
DESCRIPTION