Trusted Peer & SIP trunk
Goal to achieve:
Add a SIP trunk and a BRI trunk in the main office and establish trusted peer between two ISGs located in the main office and the remote office
so that the extensions of two offices can make call to each other.
Furthermore, extensions of remote office can make call out through BRI trunk of the main office.
The incoming call on BRI trunk can be reached to the extension of the remote office over trusted peer.
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