When Grandstream IP PBX UCM63XX is used in remote work without Remote Connect service (UCMRC), there are certain network settings required to allow Grandstream Wave Mobile application login via UCM’s Public IP addresses; otherwise, you will get login errors such as ‘Account Registration Failed’ or ‘Unable to connect to the server’.
Configure the ports for Wave applications in the router
Make sure that the UCM ports below are forwarded to your routers to allow communications between Wave applications and UCM.
SIP Ports: 5060 – 5061 (TLS)
RTP ports: 10000 – 20000
Wave application port: 8090
UCM BFCP: 50000 – 65535
Disable SIP ALG in the router
SIP Helper or SIP ALG (Application Layer Gateway) must be disabled in the router or firewall setting.
Configure STUN / TURN server in UCM
We have seen registration failure with the UCMRC plan in Wave Mobile (iOS or Android). It is found that the user has uploaded an invalid certificate to the UCM under PBX settings > HTTP server > Certificate Settings. To prevent the login failure issue with Wave Mobile, reset the Certificates.