By default, Cloud-MSS provides three UDP ports to send/receive SIP messages: 5060, 6060 and 8080. The 5060 port is default SIP port defined in SIP standard protocols and Cloud-MSS uses it as default SIP port too.
If you want to change it to 6060 or 8080, please click menu "Data / System” in Cloud-MSS management system, and select one of them as following figure described:
If you select a UDP port which is not standard 5060, you must change configurations in SIP phones/clients. Below figure is a demo configuration of xlite since we change the port to 8080.