If the above steps didn't resolve the problem, you may also need to change your network security settings, if installed.
If you have a separate router or firewall and/or operate on a network these will also need to be configured to allow traffic as follows:
TCP: allow any internal computer to connect to outside computers on ports 80 and 443. Port 80 is the standard HTTP (web browsing) port and port 443 is used by HTTPS (Secure Sockets Layer) for encrypted web browsing.
UDP: allow any outgoing UDP request and appropriate replies.
Please note that the UDP ports are only open to allow requests from users within your network and people outside your network who try to gain access to those ports will see them as closed.
If you are not responsible for these settings we suggest that you should forward this complete email to your network administrator, network support contractor or service provider who may contact us for confirmation or clarification if required and to obtain a copy of our Network and Firewall Security Handbook which explains in details the use of the ports Full details are also found in the last section of the User guide which can de downloaded from www.whitephone.com
Important Note regarding UDP settings
The UDP ports are only open to allow requests from users within your network and people outside your network who try to gain access to these ports will see them as closed.
We use UDP ports to carry SIP/RTC which is required for the majority of VOIP applications. To protect your network ALL requests that are generated by our software are validated by our servers and the responses back are authenticated. Some packets are also encrypted for additional security. Any packets which fail validation or authentication are discarded.
Please note that if the UDP ports are not configured to allow any outgoing request and accept appropriate replies our software may not operate correctly. Further detailed information can be found in our Network and Firewall Security Handbook which is available on our web sites. |