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Linksys Voice System Administration Guide
44
Configuring SIP Timer Values
Configuring the SPA9000 for ITSP Interoperability
Configuring SIP Timer Values
The SPA9000 is configured with default timer values that should be adequate in most
circumstances. However, you can adjust the SIP timer values as needed to ensure
interoperability with your ISTP. For example, if SIP requests are returned with an “invalid
certificate” message, you may need to enter a longer SIP T1 retry value.
To view the default settings or to make changes, open the
Voice > SIP
page, and scroll down to
the
SIP Timer Values
section. For field descriptions, see
”SIP Timer Values (sec) section,” on
page 161
.