Register extension as SIP Trunk


I want to register a extension located in the pbx A into pbx B as trunk, my idea is transfer some calls that arrive to the pbx B here.

Have somebody some manual or guide for do this?

Thank you very much and happy new year!

Why wouldn’t you want to connect both systems as described here?

Hello, thanks by your help, I need to use SIP because the extension in pbx A is a pbx provider and have not control over this server, just sip details of the extensions, some idea?

Thank you again, best regards.

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