To establish connectivity between the IPPBX and Mobile, it is necessary to enable registration for the mobile device on the IPPBX. This will enable the mobile to connect with other extensions registered on the IPPBX
TOPOLOGY
1- IPPBX FCM5600
1- Navigate to PBX Settings-> Extensions/Trunks -> IP Extensions
2- Choose Extension and navigate to edit and navigate to Features.
3- Enable Remote Extension.
3- Navigate to Advanced
4- Make Transport Protocol TLS
5- Navigate to Value Added Features -> Remote Access -> Status
6- Take the domain server.
2- On Mobile
1- Connect the Mobile to the internet by Wi-Fi , 4G or, 5G.
2- Download Zoiper
3- Open Zoiper
4- Navigate to Accounts
5- Click add
6- Select manual configuration
7- Select Sip account
8- Account name: Use your Extension
9- Domain: Domain Server:5162
10- User name: Use your Extension
11- Password: sip Password
12- Navigate to Network
13- Edit transports from UDP to TLS
14- Disable STUN
15- Navigate to TLS, Make it TLS V1.0
