In a SIP point-to-point configuration, a Yealink T42G IP phone and CyberData device can place calls to each other on the same network without a SIP server.
CyberData Device Configuration
For your reference, instructions on point-to-point configuration are provided in the Operations Guide of every CyberData SIP-enabled device.
To configure point-to-point on a CyberData device, log into the web interface and follow these steps:
1. Disable 'Register with a SIP server' on the SIP configuration page
2. Enter the IP address of the Yealink phone into the 'Dial Out Extension' field on the SIP configuration page for outbound dialing
3. Save and Reboot to store changes
Yealink T42G Configuration
No configuration changes are needed to enable Point-to-Point calls to a CyberData device.
Dialing from a Yealink T42G Phone
To dial the CyberData device from a Yealink T42G phone, enter the IP address of the CyberData device using the phone's keypad. Use the * key for the decimals in the IP address.
For example, if the IP address of the CyberData device is 10.10.1.222, enter 10*10*1*222 into the keypad.
Or, you can create a contact in the Yealink phone's Local Directory to dial the CyberData device's IP address when the contact is selected from the Directory.
Yealink T42G phone tested using firmware version 188.8.131.52.
CyberData SIP Outdoor Intercom tested using firmware version 11.4.8. Any CyberData SIP-enabled device can be configured in the same manner for point-to-point calls.