I have a company set up with two locations. There is one phone between the two locations that is unable to dial the other location, it just says “all circuits are busy”. The phone can make outgoing calls, receive incoming calls, and call other extensions within the same site. I have a model template set up for this location so all the phones should be operating the same way. Both systems have the appropriate incoming and outgoing call settings to allow the other site to contact them.
I have tried deleting the extension, swapping out phones and even tested the cable.
Any help would be appreciated…
Had a similar problem when I added a phone. In the outbound route, I was filtering by CID, and hadn’t added that extension to the list.