Connect ONT Pot line from Huawei Router HG8245 to 3CX IP PBX via SIP IP Based,
VoIP line is from a huawei Router and need to connect it to a local PBX and then the second scenario will connect to a 3CX PBX from cloud.
Actual POTS Line have a private IP , Need to also configure inbound and outbound rules.
Only experienced engineer.
Need to be done via team viewer live.