CounterPath X-Lite 4.7 for Windows User Guide - Manual (Page 47)

X-Lite for Windows User Guide
9
Timers
Enable session timers
Default session time A session timer is a mechanism to detect whether a call session is still active from the signaling
point of view. When the timer expires, a refresh is sent from one party to the other. The timer is
then reset.
• Turn on to enable session timer. Enter a value in Default session time.
• Turn off to disable session timer; refreshes will never be sent.
Session timer preference This field specifies your preference for which party should send the refresh. The preference is not
a guarantee that the refresh will be performed by the specified party. The choices are:
• None: No preference.
• Local refreshes: Your computer sends.
• Remote refreshes: The other party sends.
• UAC refreshes: The user agent client (the party that initiated establishment of the
communications) sends.
• UAS refreshes: The user agent server (the other party) sends.
Hold Method Change this setting only if your VoIP service provider advises you to do so.
Send SIP keep-alives Typically on, to instruct X-Lite to send SIP keep-alive messages in order to maintain a “pinhole”
through your firewall for SIP messaging.
Use rport Typically on.
Send outgoing request
directly to target When checked, requests with a complete URI ([email protected]) go to ABC.com.
If you check this field, make sure you also set “Send outbound via” (on SIP Account > Account)
to “Domain”.
Typically off. This field is intended for test labs and may cause problems in a NAT environment.
Table 6: SIP Account Properties – Advanced
Field Description