The UC environment for a SIP looks like that shown below.
It is likely you will need to make some changes to your configuration. Typical Call Route and Trunk Group configurations are shown in in the illustration below. Note the highlighted parameters.
Click the Transmit button in VXbuilder to apply the configuration changes.
Configuring Your SIP Phone
This section shows how your SIP phone should be configured. Double click the SIP phone to be configured.
Configuring the SIP Phone Settings
Select Settings to display the Settings - Server screen as shown below.
SIP from VXbuilder Perspective
Your SIP phone is now ready to make the SIP call shown below (from the perspective of VXbuilder).