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3 Go to Go > Preferences > SIP.
4 Click Add proxy/registrar to open a registration form.
5 Fill in the appropriate values for Registration Period, SIP Identity, SIP Proxy and Route. If
7.1.6 Configuring the Audio Codecs
Linphone supports a several codecs for the transmission of voice data. Set your connection type and
choose your preferred codecs from the list window. Codecs not suitable for your current connection
type are red and cannot be selected.
7.2 Testing Linphone
Check your Linphone configuration using sipomatic, a small test program that can answer calls
made from Linphone.
Testing a Linphone Setup
1 Open a terminal.
2 Enter sipomatic at the command line prompt.
3 Start Linphone.
4 Enter sip:robot@127.0.0.1:5064 as SIP address and click Call or Answer.
5 If Linphone is configured correctly, you will hear a phone ringing and, after a short while, you
If you successfully completed this procedure, you can be sure that your audio setup and the network
setup are working. If this test fails, check whether your sound device is correctly configured and
whether the playback level is set to a reasonable value. If you still fail to hear anything, check the
network setup including the port numbers for SIP and RTP. If any other application or protocol uses
the defaults ports for these as proposed by Linphone, consider changing ports and retry.
7.3 Making a Call
Once Linphone is configured appropriately, making a call is straightforward. Depending on the type
of call (see
differ slightly.
1 Start Linphone using the menu or a command line.
2 Enter the SIP address of the other party at the SIP address prompt. The address should look like
116 SUSE Linux Enterprise Desktop 10 GNOME User Guide
working from behind a firewall, always select Send registration and enter an appropriate value
for Registration Period. This resends the original registration data after a given time to keep the
firewall open at the ports needed by Linphone. Otherwise, these ports would automatically be
closed if the firewall did not receive any more packages of this type. Resending the registration
data is also needed to keep the SIP server informed about the current status of the connection
and the location of the caller. For SIP identity, enter the SIP URL that should be used for local
calls. To use this server also as a SIP proxy, enter the same data for SIP Proxy. Finally, add an
optional route, if needed, and leave the dialog with OK.
will hear a short announcement.
"Determining the Connection Type" on page 113
sip:username@domainname or username@hostname for direct local calls or like
username@sipserver or userid@sipserver for proxied calls or calls using the
service of a SIP provider.
for reference), the calling procedures
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