Hi, I have 2 mitels interconnected by SIP trunk and each connected to Ericsson using an ISDN card, everything works properly except when an external call on a bp, you pick, is retained and transferred to an extension of the other mitel. When you hang up the extension before the bp external call that has the external call receives a 127 error msg unexpected interworking of mitel and send a msg to the public network congestion jumping speech co-management for the operator. The mitel seems to send a msg 30 as a normal call clearing when it should send a 25, you can adjust these msgs in the mitel? Which could be modified to use a coding standard (ETSI).
thanks for the help
thanks for the help