How to register a VoIP trunk?

and enter the following information in the popup window. (Take the IMS trunk provided by Chinamobile as an example.)
Provider Name: 

 

Hostname/IP:

Port:

Domain:

User Name:

Password:

From User:

Maximum Channels: the number of the channels of each line you applied for (e.g.: 2) Caller ID: +86592111111
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