The calls breaks up after a few seconds incoming and outgoing calls

Question 

When I get an incoming call after 15-40 seconds the call is cut off. 

Answer

This can have several causes, if this happens with more colleagues, please contact support, if this only you, go through the following steps:

1. When working at home or office reboot the modem
2. Check in the modem/router if the function SIP ALG is disabled, please contact your IT manager or administrator how you can do this 
3. Make sure that ports used by collaboration are not being blocked or filtered by firewall
4. When connected by Wi-Fi try cable
5. If this not solved the problem, please contact us by chat or mail at help@pluscloud.nl