Installation guide

Configuring site-to-site call routing for IP telephony 6-4
Chapter 6: IP Telephony Configuration
Wave Global Administrator Guide
3 Click SIP from the Signaling Protocols folder in the left pane.
4 Select the
SIP Enabled checkbox. The SIP Local IP Address is selected by default.
Clicking
Advanced opens the SIP Advanced Parameters dialog.
• You use the Global Authentication tab to set up SIP authentication, as described in
“Setting up SIP endpoint authentication” on page 6-5.
• You use the General tab to adjust the following advanced SIP parameters. These are
expert settings that should not be modified unless you are directed to do so by
your Vertical Technical Support representative.
•
T1 Timer. Specifies the duration (in milliseconds) before the first retransmission of
a request over UDP, or an INVITE response over any transport protocol.
Subsequent retransmission intervals are calculated by doubling this initial value,
up to a maximum value configured in the T2 Timer value. The minimum
recommended value is 500ms. Your Vertical Technical Support representative
may increase the value of this timer if you are communicating with SIP end points
over network connections with longer latencies.
Release 2.0
September 2010