I have 2 S20 PBX one in the main office and the other in the branch office (trunk sharing)
I've configured a SIP-Peer trunk and an outbound route on both pbx with a dial pattern of "9" to use the main office trunk and "8" to use the branch office trunk.
What I want to do also is any calls that comes from the branch office, that call will go to the main office ivr.
I tried to set branch office inbound route set to outbound route and then the configured outbound route dial pattern is the main office telephone number, but it doesn't work. The call does not go to main office.